Random log off in Ubuntu 12.04 LTS

[Fabien H. Dumay]

I get logged off from Ubuntu sometimes. There is no error message or any indication that it is going to log off. The screen goes black, and after 2-4 seconds, i get presented with the Ubuntu Log On Screen.

There is no clear pattern (or at least if have not noticed any). One time i am working with Netbeans, another time i am using firefox. This also means that at present i can not clearly say what package might be causing this behaviour.

I am fairly sure the problem lies in 12.04 (or more precise - the combination of 12.04 and the hardware i am using). I do not have the same problem running 11.04 or 11.10.

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Steve Goddard (ste-goddard)]

I also suffer with this exact bug after upgrading from 11.10

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Steve Goddard (ste-goddard)]

Well, I can get this logout bug to happen all the time when watching stuff on you tube. I have tried both FireFox and Chrome and get the same results.

However I have also had this happen when not watching videos, its just that it happens every time I watch a video.

[Tom (trsaunders)]

I have the same problem, but it only happens to be on startup. My system is set to automatically log in.

When I first turn on my machine, it logs in and I am able to launch programs etc. after a short while (maybe a minute or two) I notice some strange graphical artifacts near the top of the screen, it is hard to describe but something along the lines of a few rows of blinking rectangles. I then get logged out, after which I can log back in and I have no further problem.

I have no idea what package might have caused this.

[Steve Goddard (ste-goddard)]

Interesting ! I have had that too. Mine looked like a garbled shell. I
could see chars appear when I typed but it wast A-Z text that was displayed.

I have read today that it could be X server that is crashing which results
in the login screen being shown.

When I get home I will check the Xorg.0.log file in /var/log for errors.

Cheers

On 17 April 2012 14:45, Tom <email address hidden> wrote:

> I have the same problem, but it only happens to be on startup. My system
> is set to automatically log in.
>
> When I first turn on my machine, it logs in and I am able to launch
> programs etc. after a short while (maybe a minute or two) I notice some
> strange graphical artifacts near the top of the screen, it is hard to
> describe but something along the lines of a few rows of blinking
> rectangles. I then get logged out, after which I can log back in and I
> have no further problem.
>
> I have no idea what package might have caused this.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/980519
>
> Title:
> Random log off in Ubuntu 12.04 LT Beta
>
> Status in Ubuntu:
> Confirmed
>
> Bug description:
> I get logged off from Ubuntu sometimes. There is no error message or
> any indication that it is going to log off. The screen goes black, and
> after 2-4 seconds, i get presented with the Ubuntu Log On Screen.
>
> There is no clear pattern (or at least if have not noticed any). One
> time i am working with Netbeans, another time i am using firefox. This
> also means that at present i can not clearly say what package might be
> causing this behaviour.
>
> I am fairly sure the problem lies in 12.04 (or more precise - the
> combination of 12.04 and the hardware i am using). I do not have the
> same problem running 11.04 or 11.10.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+bug/980519/+subscriptions
>

[Mafoof (m3ttcew)]

This bug has also stung me many times. It seems to happen at any time, one time it happened when I was away from my computer. It felt like X (or another process) was getting killed because it happened with no warning and was more-or-less instant. Though I can't confirm this, it *seems* like Unity 2D is not affected by this problem.

[Alec Taylor (alecjtaylor)]

This bug is affecting me as well. I'm running the stable Nvidea drivers on 64 bit machine. It appears to happen most when using chrome. The bug has also appeared under gnome 3.

[Nick Verlinde (nick-verlinde)]

I also experience this problem, The last 2 times I've had it were

- watching a video in chrome (youtube)
- coming back after leaving the computer idle, I type my password and saw my desktop for about 2 seconds and then it logged me off.

I don't know if it's relevant to the developers but I actually also get the little logoff sound. As in a proper logoff, rather than crashing to login screen?

[Nick Verlinde (nick-verlinde)]

I'm also using nvidia if that is relevant

[Lee Quarella (lee-lucidfrog)]

Fresh ubuntu install on a clean SSD. nvidia. Have not been able to determine any pattern to it, but will crash from 1-5 times over the course of a workday.

[Steve Goddard (ste-goddard)]

Looks like the pattern here is 64bit 12.04 with nvidia drivers mostly
playing video in chrome or Firefox.
On Apr 24, 2012 2:45 PM, "Lee Quarella" <email address hidden> wrote:

> Fresh ubuntu install on a clean SSD. nvidia. Have not been able to
> determine any pattern to it, but will crash from 1-5 times over the
> course of a workday.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/980519
>
> Title:
> Random log off in Ubuntu 12.04 LT Beta
>
> Status in Ubuntu:
> Confirmed
>
> Bug description:
> I get logged off from Ubuntu sometimes. There is no error message or
> any indication that it is going to log off. The screen goes black, and
> after 2-4 seconds, i get presented with the Ubuntu Log On Screen.
>
> There is no clear pattern (or at least if have not noticed any). One
> time i am working with Netbeans, another time i am using firefox. This
> also means that at present i can not clearly say what package might be
> causing this behaviour.
>
> I am fairly sure the problem lies in 12.04 (or more precise - the
> combination of 12.04 and the hardware i am using). I do not have the
> same problem running 11.04 or 11.10.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+bug/980519/+subscriptions
>

[Fabien H. Dumay (fhdumay)]

My system just crashed - i provide you with the Xorg log files (before/after if i am correct) - i found a segmentation fault in the log - maybe it helps

[Steve Goddard (ste-goddard)]

Ok, this just happened again when using google maps. I did an ls -lahtr /var/log to get the latest logs that had been written and found this near the bottom of the syslog:-

Apr 25 18:15:47 xeon8 gnome-session[16407]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :1.#012
Apr 25 18:15:48 xeon8 bluetoothd[944]: Endpoint unregistered: sender=:1.219 path=/MediaEndpoint/HFPAG
Apr 25 18:15:48 xeon8 bluetoothd[944]: Endpoint unregistered: sender=:1.219 path=/MediaEndpoint/A2DPSource
Apr 25 18:15:48 xeon8 bluetoothd[944]: Endpoint unregistered: sender=:1.219 path=/Media
Apr 25 18:15:51 xeon8 acpid: 1 client rule loadedEndpoint/A2DPSink
Apr 25 18:15:49 xeon8 acpid: client 16254[0:0] has disconnected
Apr 25 18:15:49 xeon8 acpid: client 16254[0:0] has disconnected
Apr 25 18:15:49 xeon8 acpid: client connected from 5665[0:0]
Apr 25 18:15:49 xeon8 acpid: 1 client rule loaded
Apr 25 18:15:51 xeon8 acpid: client connected from 5665[0:0]
Apr 25 18:15:57 xeon8 rtkit-daemon[1823]: Recovering from system lockup, not allowing further RT threads.

Attached is the full syslog.

[Karl Wenzel (karl-210)]

I have this same problem, I haven't had it for a while though until today. I was using firefox at the time and just as I clicked on the youtube link from google's homepage the screen suddenly goes black, and then the log in screen appears. I don't know if it helps, but I'm using Ubuntu 12.04 LTS 64-bit (the latest release) with up-to-date amd video drivers.

[Travis Pew (travisp)]

This happens to me frequently. I am on Ubuntu 12.04 and using nvidia drivers. It does not occur when I'm watching video -- it last occurred simply while entering text in VIM (and no video playing).

[Anthony Pellegrino (xc8118)]

Also using nvidia driver -- crashes when playing any type of media through firefox/chrome

[Kym-mcgain (kym-mcgain)]

Also in addition to Steve Goddard's post, before the like of Gdk-Warning: gnome-session: Fatal IO error 11, there was this line in my log.
kernel: [21828.132603] Xorg[12291]: segfault at b4fca00
0 ip b4928e66 sp bffa8840 error 7 in nvidia_drv.so[b4850000+706000]

Hopefully that can narrow the problem down a bit.

[Thomas Norton (tomwnorton)]

I have the same problem. I'm running the 32-bit release version on a 64-bit machine with AMD and NVIDIA.

Here's my xorg log:

[ 70720.692]
Backtrace:
[ 70720.692] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb7741f87]
[ 70720.692] 1: /usr/bin/X (0xb75ba000+0x18bd0a) [0xb7745d0a]
[ 70720.692] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb759740c]
[ 70720.692] 3: /usr/lib/i386-linux-gnu/xorg/extra-modules/nvidia_drv.so (0xb4821000+0xd472a) [0xb48f572a]
[ 70720.692] Segmentation fault at address 0xb4f97000
[ 70720.692]
Caught signal 11 (Segmentation fault). Server aborting

[muhalifsirin (alperense)]

This happens to me every 15 minutes. It is driving me crazy.

i have Nvidia card.

[Pivix (pivix)]

I also have this problem, my card is nvidia and im using Opera browser. but i have notices it not happens when I`m running unity in 2d mode.

[jsb (ballez-js)]

I am also affected.
64-bit architecture. It happens in both fresh install and upgrade to 12.04.

it can happen in different apps: Firefox, geany and others.
I am usually sent back to the login screen without any prior notice but on some occasions the screen freezes and only the mouse stays responsive, but of course those two behaviours could be unrelated.

bug#990693 could be a duplicate.

[jsb (ballez-js)]

http://www.nvnews.net/vbulletin/showthread.php?t=178460
would seem the likely culprit...

[Mafoof (m3ttcew)]

To corroborate what others have been saying, I'm also using 12.04 (*Just* reinstalled over the Beta 2 version, no more crashes so far, but haven't watched any videos) with the Nvidia binary drivers and it mostly happens when watching Flash video.

[Mafoof (m3ttcew)]

Just to update, this bug has again hit me on my fresh install of *post-release* 12.04. Happened when a flash video was playing.

[Nick Verlinde (nick-verlinde)]

I'm also still getting this in 12.04

switching to ubuntu 2d removed the problem

[danrgmc (danrgmc-yahoo)]

I'm having similar problems with xorg-randomly the graphical session terminates and returns to the login screen.
Ubuntu 12.04_amd64-LTR.
Intel I5-750 CPU quad, no hyperthread
Asus P7P55D-E mobo
WD Caviar 1 tb hdd
WD 160 gb ide hdd-am using this for 12.04 right now.
8gb ram
9800GT GPU-295.40 Nvidia drivers
Seasonic 650w 'gold' PSU
Triple boot: Ubuntu 11.10_amd64, Windows 7 Professional amd64, Ubuntu 12.04_amd64
Temps all in spec.

This is the 1st time I've ever done a clean install which is pretty much unuseable.

[Benjamin Johnson (ben-chgtaa3q)]

I have the same issue. I have an NVIDIA card. I tried manually reverting to a previous video driver to no avail.

[James Cotten (pastorjamesc)]

It is happing here too. (LOL, it actually happened as I was trying to type this.) It seems to be especially bad when playing facebook or Kabam games. Also NVIDIA card, 32-bit system.

[Rolo (rolo-wildfish)]

Just had this today. Clean install of 12.04 AMD64. Am using nvidia additional driver marked as "post-release updates". Going to switch to "version-current" and see if it helps.

My hardware:

Intel Core i7 930
Gigabyte GA-X58A-UD7
Patriot Viper 6GB (3x2GB) DDR3 PC3-12800C9 (1600MHz)
BFG GeForce 9800 GTX OCX 512MB GDDR3
OCZ Vertex 2 SSD

Please shout if any more info would be helpful. Thanks.

[Rolo (rolo-wildfish)]

No, still happens with "version-current" driver. Just incase anyone needed to know.

[Igor Korcek (korcek-igor)]

I have this same problem! It's so annoing... I hoped that LTS version will be more stable but its horor! Even developing version is more stable. So much bugs and problems with current version...

Anyway, i have this specs:
AMD Athlon(tm) II X2 240
Asrock N68PV-GS
4GB RAM
Zotac Geforce 250 GTS

Maybe it's related to Geforce driver cause 9800GTX is the same card just older type. But i am not sure. And it's not architecture depedent, i have 32 bit.

[Igor Korcek (korcek-igor)]

Ok, i tried install NVIDIA drivers... here is the really good problem. I can't go to the terminal with ctrl+alt+f1 key but i can go back to X. It's very strange... but maybe it's related.

[Alex Mishovsky (beulih)]

Ubuntu 12.04 seems buggy as hell with NVidia drivers. I built a new system with a 9500GT card and two monitors in anticipation of the 12.04 release. I couldn't work more than a couple of minutes at a time in Unity 3D before a complete freeze. Additionally, while logging in I would often get artifacts at the top of the screen. Switching to Unity 2D made the freezes less frequent but they still happened.

Finally I got fed up. I am interested in using this system for actual work as opposed to beta testing for the Ubuntu devs, so I threw in a 8500GT card that I had sitting on the shelf. It doesn't freeze up any more even in Unity 3D mode, but about every couple of hours it just completely logs me out. I'm fairly certain I have the same bug mentioned by others in this thread. Logs show this right before the surprise logout:

May 3 23:09:39 zsasz kernel: [10015.085461] NVRM: Xid (0000:01:00): 6, PE0001
May 3 23:09:39 zsasz kernel: [10015.265387] Xorg[5235]: segfault at 68 ip 00007f67d09f30f9 sp 00007fff9436f1b0 error 4 in nvidia_drv.so[7f67d0991000+6e1000]
May 3 23:09:39 zsasz acpid: client 5235[0:0] has disconnected
May 3 23:09:39 zsasz acpid: client 5235[0:0] has disconnected

Tomorrow when I get time I will try downgrading to the 295.33 drivers (I am currently running 295.49). Googling Ubuntu 12.04 nvidia problem gives about 500,000 results, so I'm kicking myself for not waiting another few months to upgrade. So much for "LTS", lol...

[Snahrck (hansenclever)]

Also have this problem. GeForce 9800 GT and fresh install. Ocurred many times, once using netbeans, once using chrome, once using firefox...
and also cannot ctlr+alt+f1.

[Snahrck (hansenclever)]

Forgot to say that I'm using 32bit version.

[chicom9 (chicom9)]

yes same bug here system completely logs me off without any warning. I am running:
3.2.0-24-generic #37-Ubuntu SMP Wed Apr 25 08:43:22 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

Before moving to this ridiculous 12.04 LTS i was running 10.10 which worked perfectly no issues what so ever. My system is a Dell Precision T5400 with a Nvidia card G86 [Quadro NVS 290] (rev a1). I never experience any problems at all on 10,10. I figured i could upgrade to 12.04 thinking it will be stable. I hate unity and I am running Gnome-shell. I really hope this problem gets resolved being that i use this system primarily for work.

I did do a BIOS update on my T5400, been that prior to this my machine will completely freeze and will dump the following error:

kernel: [ 8040.563164] NVRM: GPU at 0000:02:00.0 has fallen off the bus.

After the BIOS upgrade i had not received this error. However I do get kicked out of my gnome session :(

[chicom9 (chicom9)]

Update # #

following instructions here:
http://reformedmusings.wordpress.com/2012/04/28/warning-about-ubuntu-12-04-lts-precise-and-nvidia-cards/

added driver NVIDIA-Linux-x86_64-295.33.run

But it fails same error message system freezes and i get:

kernel: [ 8040.563164] NVRM: GPU at 0000:02:00.0 has fallen off the bus.

At this point i'm going to try a newer version from nvidia site:

http://www.nvidia.com/object/linux-display-amd64-295.49-driver.html

I will let you guys know...

[chicom9 (chicom9)]

Update 3

At this point with driver 295.49 i experience the same issue in where i get kicked out of my gnome session. This time the machine did not freeze, but I am back with the same bug of logging me off.

I guess my next attempt is to role back to either 10.10 or maybe just try a different distro such as Debian.

this suxs....

[Lars Jarlvik (lars-jarlvik)]

According to phoronix nVidia has release a 302 beta, has anyone tried this one and go any results if the issue is fixed here?

[shoghq (fox-spear-head)]

I'm affected as well.

Running 12.04 final, installed from the scratch.

Happens randomly, sometimes multiple times in a few minutes.

Tried various NVidia Driver versions to no avail.

Log excerpt as follows:

May 4 18:14:46 ech3lon kernel: [ 890.010392] Xorg[1480]: segfault at b4f85000 ip b48e1e66 sp bfd629b0 error 7 in nvidia_drv.so[b4809000+706000]
May 4 18:14:46 ech3lon gnome-session[2911]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
May 4 18:14:46 ech3lon acpid: client 1480[0:0] has disconnected

[markb (mark-blakeney)]

I did a clean install of 12.04 and have been experiencing this a few times per day also on with my nvidia 8600 GT card. That was with nvidia-current-updates at 295.40. Never saw this problem on 11.10. You will see a xorg server segmentation fault in the log file when this happens. I installed the 295.49 driver from nvidia site and get the same seg fault. Then installed the 302.07 beta driver and still see the seg fault.

..
[ 2262.985] (II) NVIDIA GLX Module 302.07 Fri Apr 27 11:17:35 PDT 2012
..
Backtrace:
[ 9523.698] 0: /usr/bin/X (xorg_backtrace+0x37) [0xb76a2627]
[ 9523.698] 1: /usr/bin/X (0xb751a000+0x18c3aa) [0xb76a63aa]
[ 9523.698] 2: (vdso) (__kernel_rt_sigreturn+0x0) [0xb74f740c]
[ 9523.698] 3: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0xb4724000+0xcfc74) [0xb47f3c74]
[ 9523.698] Segmentation fault at address 0xbe9f
[ 9523.698]
Caught signal 11 (Segmentation fault). Server aborting
[ 9523.698]

[chicom9 (chicom9)]

On my system what triggers this bug is whenever i pull up a flash video within firefox. Also I have mplayer open playing some other random video file. The system goes on for about a minute before it crashes and i get kicked-out of the gnome-shell. Falling back at the login screen. I am monitoring the error and here is what i get from the Xorg.log:

[ 764.750] (**) Option "config_info" "udev:/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-2/2-2:1.0/input/input2/event2"
[ 764.750] (II) XINPUT: Adding extended input device "USB Optical Mouse" (type: MOUSE, id 10)
[ 764.751] (II) evdev: USB Optical Mouse: initialized for relative axes.
[ 764.751] (**) USB Optical Mouse: (accel) keeping acceleration scheme 1
[ 764.751] (**) USB Optical Mouse: (accel) acceleration profile 0
[ 764.751] (**) USB Optical Mouse: (accel) acceleration factor: 2.000
[ 764.751] (**) USB Optical Mouse: (accel) acceleration threshold: 4
[ 764.751] (II) config/udev: Adding input device USB Optical Mouse (/dev/input/mouse0)
[ 764.751] (II) No input driver specified, ignoring this device.
[ 764.751] (II) This device may have been added with another device file.
[ 1029.391]
Backtrace:

Notice that it says device may have been added with another device file? I guess it looses the /dev/[video-adapter]
No sure what to do?

[chicom9 (chicom9)]

Ok one more try, now using 302.07

http://www.nvidia.com/object/linux-display-amd64-302.07-driver.html

So far so good. I am running flash and mplayer at the same time and I have not been kicked out. I will continue to test this driver and let everyone know if it works.

Thanks,

[Mike Carifio (carifio)]

Me too. Precise, nvidia GEForce 8600M GT, driver 295.40, 32bit.

[MvW (2nv2u)]

Same here, happens quite often and is randomly helped by the nvidia card falling from the bus.
https://bugs.launchpad.net/ubuntu/+source/unity/+bug/882710
So much for a LTS release, it makes my workstation to unstable to work with and upgrading to the newest 302 driver seem to involve installing a new x server which will break compatibilty in the future!

[MvW (2nv2u)]

After googling a bit more I found a PPA for 302, but dowloaded the deb instead of adding the PPA itself.
https://launchpad.net/~shiba89/+archive/nvidia-precise/+packages
Seems to be running fine for now, as chicom9, will report back.

[Anthony Pellegrino (xc8118)]

Also running the 302 as per nosaer82, working fine so far -- will update soon.

[Andrew Berger (andbberger)]

I can confirm this effects me as well. I am running a nvidia card with the version current accelerated driver. It may be worth booting into 2d unity for a while and seeing if this effects the bug.

My two cents for finding the bug is that it invariably blacks out after I press the enter key. The bug doesn't seem to be a problem with a certain application, as it has happened with most (just crashed IDLE). That some report it happens with chrome I think is just a symptom of that being the most frequently used application.

This is by far the largest problem with 12.04 right now for me. A fix would save much frustration and lost work...

[Victor (victor-pillac)]

Same issue in the final release, version 302 of nvidia driver seems to have solved the problem as suggested by @nosaer82.
However I wonder how stable this fix will be?

[Angelo Trivelli (angelotrivelli)]

Can the title of the bug be changed to something more descriptive of the problem. It is not just a log-off, the Xserver is actually crashing!

I am experiencing the same problem on a 12.04 Ubuntu installation that was upgraded from previous. Running NVidia 8500GT graphics card.

Here is my /var/log/log/Xorg.0.Log.old...

    [ 69085.061] 3: /usr/lib/i386-linux-gnu/xorg/extra-modules/nvidia_drv.so (0x6767000+0x63d38) [0x67cad38]
    [ 69085.061] Segmentation fault at address (nil)
    [ 69085.061]
    Caught signal 11 (Segmentation fault). Server aborting
    [ 69085.061]
    Please consult the The X.Org Foundation support
         at http://wiki.x.org
     for help.

[Peter Counsell (drc-u)]

I also have had this problem after a fresh install of 12.04 64bit. I am suddenly and randomly logged out, losing whatever I was working on when the crash occurred. It seems to happen with increasing frequency the longer the machine is left on. The syslog gave no clues as to the fault.

I have an i7, asus 1155 motherboard, ATI 5000 series graphics card and crucial SSD which worked fine with 10.10 and the FLGRX driver installed on 12.04 without problems. After many, many crashes I decided to use the 2D unity option but after several completely unresponsive whole system crashes and 2 weeks of failed attempts, I have now downgraded to 11.10 64bit, which runs with no problems at all.

[Hector (hherrera1229)]

Using Ubuntu 12.04 32-bit, x-server crashed using nvidia 302.07 driver although its only happened once in the last couple of hours. Before updating to the new driver it would crash every 2 to 3 minutes.

[David (dboyd68)]

I am on Ubuntu 12.04 64-bit, I also have the same issue. I tried the nvidia 302.07 driver but x-server still crashed. Very annoying issue.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[MvW (2nv2u)]

Tested 302 for a couple of days. Have been working with it for 10 hours straight today everything seemed fine.
Got home started my laptop again and x-server crashed twice in 1 hour.
This issue should be a prio 1. I've lost work because of this!

Seriously considering another distribution at the moment, this shouldn't happening especially not in a LTS release....

[Clayton Davis (clayadavis)]

I can confirm this bug on my setup as well, 12.04 x64 with an Nvidia Quadro FX 1700. I don't really watch videos or anything, but this bug manifests itself every one or two hours. This is an absolute showstopper, and really needs to be an extremely high priority.

[Knut J Bjuland (knut-j-bjuland)]

I can confirm this on Dell Latiotude E6510.

[John F Leach (jfleach)]

Please reference Bug #973096 for the same issue, backtrace and attached logs.

https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers/+bug/973096

Issue occurs on 302.07 driver also. Please mark importance as high.

[Leszczu (leszczu)]

This bug affects me as well. Running 64 bit Ubuntu 12.04 with nvidia graphics (stable version).
Happens when playing flash videos in Firefox 12.0.
Switching to Ubuntu 2D on login screen helps.

Dmesg says:
Xorg[8478] general protection ip:7f5f27e466a9 sp:7fffdda31ff0 error:0 in nvidia_drv.so[7f5f27de5000+6e0000]

/var/log/syslog says:
May 11 22:55:47 kernel: [22859.617181] Xorg[8478] general protection ip:7f5f27e466a9 sp:7fffdda31ff0 error:0 in nvidia_drv.so[7f5f27de5000+6e0000]
May 11 22:55:47 gnome-session[8647]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Zasoby chwilowo niedostępne) on X server :1.#012
May 11 22:55:48 acpid: client 8478[0:0] has disconnected
May 11 22:55:48 acpid: client 8478[0:0] has disconnected
May 11 22:55:48 acpid: client connected from 12626[0:0]
May 11 22:55:48 acpid: 1 client rule loaded
May 11 22:55:49 acpid: client connected from 12626[0:0]
May 11 22:55:49 acpid: 1 client rule loaded

[chicom9 (chicom9)]

I'm back just to report that the even with driver 302.07 the issue there. I have spend endless amount of hours and lost work due to the fact of sudden log offs.

[Diego Gaviola (dmgaviola)]

I'm having this issue even though I don't have a nvidia card. This is an HP Folio which uses the integrated Intel video card. After I installed Ubuntu 12.04 (three days ago) it has happend three times.

So probably this is not specific to nvidia drivers as this thread might be suggesting (and it has been marked as duplicated of a bug specific to nvidia), but it could something more general.

[macramole (leandrogarber)]

Hey guys,

I was having this issue too using Ubuntu 12.04 and the 295.40 NVidia drivers.

I added

Option "UseEvents" "False"

In the "Device" section of my /etc/X11/xorg.conf file .

It seems i'm not having any more crashes.. at least for now..

Cheers

[John Dee (hktrout)]

Hello macramole,

I would like to try your remedy for this bug since I am having same issue... Could you tell me how to follow your direction ?
You said you did like following but I don't know how to do it on my Ubuntu machine.. Thanks.

Option "UseEvents" "False"

In the "Device" section of my /etc/X11/xorg.conf file .

[macramole (leandrogarber)]

As Simon Morris said in bug #973096 (https://bugs.launchpad.net/bugs/973096) it seems to reduce the crashes but I recently had one.. For me is something with flash since it only happens to me watching youtube videos. I've also switched to the HTML5 version of youtube to see if that's the problem.. anyway videos with ads are still showing using flash

For editing the xorg.conf file you have to open a terminal and execute:

$ sudo gedit /etc/X11/xorg.conf

If you don't have a Section "Device" you can add

Section "Device"
 Identifier "Device0"
 Driver "nvidia"
 VendorName "NVIDIA Corporation"
 Option "NoLogo" "True"
 Option "UseEvents" "False"
EndSection

Reboot or go to text mode (ctrl+alt+F1) and execute:

$ sudo service lightdm restart

I'll start to post in https://bugs.launchpad.net/bugs/973096 since this is a duplicated entry.

Cheers
Leandro.

[chicom9 (chicom9)]

ok I try the fix of adding

Option "UseEvents" "False"

It helps. however as soon as I pull up flash on firefox the machines freezes cannot move the mouse. The system logs still show fallen of the bus error

May 17 13:25:54 t-rex kernel: [ 293.256042] NVRM: GPU at 0000:02:00.0 has fallen off the bus.

haaahaha so annoying

[Sean Wang (wxwok)]

I confirm #33. My monitor goes into power saving when I press Ctrl+Alt+F1, and I can switch back to graphic with Ctrl+Atl+F7.

[tylerjwilk (tylerjwilk)]

i can also confirm this bug. Nvidia here. Unity 2d does not crash. Must be 3d rendering with nvidia driver?

Linux 3.2.0-24-generic-pae #37-Ubuntu SMP Wed Apr 25 10:47:59 UTC 2012 i686 athlon i386 GNU/Linux

02:00.0 VGA compatible controller: NVIDIA Corporation G92 [GeForce 9800 GT] (rev a2)

[luh3417 (raen)]

I am running 32 bit Ubuntu 12.04 LTS on Intel(R) Core(TM) i5-3550 CPU @ 3.30GHz gigabyte MB with onboard graphics ACPI: Video Device [GFX0]. Screen is freezing randomly so I can't repeat it readily. Lat time it froze was using File Browser and I had firefox up inteh background and Thunderbird. It ran all morning before freezing. When it freezes it has to be turned off at power cntr alt de dfoes not work there is no mouse of keyboard working.

[blinkblink (thomasthoma)]

I think the duplicate status is wrong because the problem is not necessarily related to nvidia drivers.
I confirm it on Ubuntu 12.04 64bit with an intel graphics card.

I remember I had encountered this bug a little after a fresh install.
Then it seemed to be fixed after a few updates but today(after almost a month) it happened again two times!

details:

1st time it happened: I pressed SUPER+2 to open firefox right after logging in: It logd out immediately and...reseted my keyboard layout (which isn't only annoying but could be very bad for a noob who doesn't know how to setup a foreign keyboard layout from scratch)

2nd time (like old times): I opened firefox and started typing...BOOM! logd out again luckily this time my keyboard setup was left intact.

please Ubuntu team: give some priority to fixing bugs. There are *alot* of them for an LTS release.

[John Dee (hktrout)]

Hi, I followed #65 procedure.

I typed " $ sudo gedit /etc/X11/xorg.conf " and there was nothing in the file. So I copied the code below and pasted it in the file, and then typed "$ sudo service lightdm restart" in the terminal. But it still logs me out randomly.. Did I do right for this ?

Thanks.

$ sudo gedit /etc/X11/xorg.conf

If you don't have a Section "Device" you can add

Section "Device"
 Identifier "Device0"
 Driver "nvidia"
 VendorName "NVIDIA Corporation"
 Option "NoLogo" "True"
 Option "UseEvents" "False"
EndSection

Reboot or go to text mode (ctrl+alt+F1) and execute:

$ sudo service lightdm restart

[David La Monaca (cercamon-hispeed)]

For me only reverting the NVidia drivers to 295.10 worked. No more crashes or sudden logoffs.
No other version could remove the bug.

My system now:
Ubuntu 12.04 LTS
Linux dlm-linuxbox 3.2.0-25-generic-pae #40-Ubuntu SMP Wed May 23 22:11:24 UTC 2012 i686 athlon i386 GNU/Linux
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce 8500 GT/PCI/SSE2/3DNOW!
OpenGL version string: 3.3.0 NVIDIA 290.10
OpenGL shading language version string: 3.30 NVIDIA via Cg compiler

[Soheil Hassas Yeganeh (soheil-h-y)]

I agree with #70 that it's not necessarily a nv related bug.

I updated to 12.04 from my very stable 11.10 and I had the very annoying random log offs. I spend some time trying many different options (switching to nouveau, trying different nvidia drivers, ...) but none worked for me. Then I installed a clean version with minimal packages and start try and error with different packages. And finally I think I have found the package that was causing the crash: it was the google talk browser plugin. I tried it several times, and without the gtalk plugin my precise is quite stable.

Is there anyone CC'ed on this bug having the google talk plugin installed? If you guys can reproduce what I have experienced, we can report it too Google and they will quickly resolve it.

[Soheil Hassas Yeganeh (soheil-h-y)]

Nevermind, after three days of stability, my ubuntu precise started to crash.

[Lawrence Sim (stgl1987)]

I also have Nvidia drivers, using an Intel i7 machine. Honestly speaking, I see the potential in Ubuntu as a credible alternative to Windows and would love to have dedicated Ubuntu machine because the user experience is far better than with Windows. With virtualbox, I can have access to Windows applications, however this is the only bug that is stopping me from being a full convert to Linux / Ubuntu.

For me, I get logged out for no reason whatsoever. There does not seem to be any observable pattern for this bug. The only constant variable is that it happens when I'm 'doing stuff' --> Doing stuff means surfing the web, doing work, etc .... It usually happens while surfing the web, as that is what I usually do with Ubuntu.

And one thing I observe, when I leave the PC on so that a download can finish overnight, then it does not log out automatically. Therefore the only constant variable about this bug is that it only happens when the machine is idle, but when you are actively doing stuff with the PC, it happens.

There therefore appears to be no way to predict when the problem will occur.

[Guido (vit-kotacka)]

This is not a duplicate of #973096. I don't have a nvidia card and it still happens all the time. Loosing the work is really annoying. It should have an appropriate priority.

My VGA:

lspci | grep VGA
00:0f.0 VGA compatible controller: VMware SVGA II Adapter

[CBnation (cedric-baelemans)]

Same here, also Nvidia.

However, there are 2 users defined on my computer. With my login, I have never encountered the problem since I upgraded 2 months ago but my daughter, who has her own user account, experiences this very often. So same machine, but only one user is affected. The only difference between the two accounts is the language setting. If I login, the PC runs in English, but when she logs in it runs in Dutch.

In terms of programs used, we both watch you tube and other flash based movies. So no difference there.

[Francisco Soares (forbidden404)]

Hi, there!

I'm here because I DON'T have a Nvidia Graphic card, but AMD. So I'm with this same problem, specially when using Chromium.
I tried to reinstall the entire Ubuntu, when I came back, it started again, so I removed the xorg-edgers ppa and then my Ubuntu was gone to 2D, I tried to reinstall the open source drivers and nothing worked well...

Please, find a fix for this quickly, I don't want to use Windows anymore D:

[Lucas Panian (lucas-panian)]

I just updated to 12.04, and I have an NVIDIA 9800 GTX. I got the random X restart with very little information in the logs - the only relevant thing was "gnome-session: Fatal IO error 11 (Resource temporarily unavailable)", and apport trying to make a log and failing due to an invalid pid. Also, after this occurred I was unable to switch to another console with ctrl+alt+f1. The crash was very repeatable by watching videos on youtube or similar for several minutes.

I am not completely convinced that this is a duplicate of #973096, because there was no crash/fault logged before the Fatal IO Error 11, as reported by the people in that bug.

I rolled the driver back to 290.10 and it has been fine so far.

[Tobias Fiechter (cyberto)]

Hello

I have the same error when starting an Application (for example Chrome or Eclipse) after the last update of Ubuntu 12.04. I also have a Nvidia graphics card with bumblebee actiavated (Optimus).

[Max Bowsher (maxb)]

Reversed spurious security designation by zero-karma user.

[grass_hopppa (lukchmiel)]

I do not think it is a duplicate of bug #973096. #973096 is only about NVidia cards. This is more about ATI.

I am using 12.04, I experienced random logs off multiple times. I have a dell laptop, 64bit architecture, with ATI card.
The problem was occurring when I had installed proprietary drivers, i.e.,
sudo apt-get install fglrx fglrx-amdcccle
The problem stopped occurring when I installed hardware acceleration, i.e.,
sudo apt-get install xvba-va-driver libva-glx1 libva-egl1 vainfo
For details how to turn on hardware accelaration for ATI see:
https://help.ubuntu.com/community/BinaryDriverHowto/ATI

I hope that I helped someone :-)

[grass_hopppa (lukchmiel)]

ehhh, it still happens just not as often. Still turning off hardware acceleration seems to improve.

[Mr.T (thau79)]

I experienced this today for the first time, but DON'T have an Nvidia card, but an Intel HD 3000 on an i3 Laptop ...

This is my syslog around the time it happened (xorg.0.log not found):

Jul 4 16:07:28 blackbox kernel: [13674.830827] HDMI hot plug event: Codec=3 Pin=5 Presence_Detect=1 ELD_Valid=1
Jul 4 16:07:28 blackbox kernel: [13674.830883] HDMI status: Codec=3 Pin=5 Presence_Detect=1 ELD_Valid=1
Jul 4 16:07:29 blackbox gnome-session[1927]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
Jul 4 16:07:29 blackbox kernel: [13675.130601] HDMI status: Codec=3 Pin=5 Presence_Detect=1 ELD_Valid=1
Jul 4 16:07:29 blackbox kernel: [13675.134104] HDMI: detected monitor PLX2472HD at connection type HDMI
Jul 4 16:07:29 blackbox kernel: [13675.134109] HDMI: available speakers: FL/FR
Jul 4 16:07:29 blackbox kernel: [13675.134113] HDMI: supports coding type LPCM: channels = 2, rates = 32000 44100 48000, bits = 16
Jul 4 16:07:29 blackbox acpid: client 1152[0:0] has disconnected
Jul 4 16:07:29 blackbox acpid: client connected from 8622[0:0]
Jul 4 16:07:29 blackbox acpid: 1 client rule loaded
Jul 4 16:07:30 blackbox kernel: [13676.340846] HDMI hot plug event: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=1
Jul 4 16:07:30 blackbox kernel: [13676.340913] HDMI status: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=0

cheers

[Francisco Soares (forbidden404)]

This duplicate is extremely wrong. I don't even have a Nvidia card!

I did a fresh install and after update, the random log offs came back again, this is about X.org, but they don't care to us, so I've changed my OS, now I'm on Arch Linux, which is so much better, I hope they solve this issue on 12.10 and maybe I use Ubuntu again.

[Andrew Betts (andrew-betts)]

I get this when watching YouTube. ATI card. 64 bit.

Jul 10 07:18:13 ab-System-Product-Name gnome-session[28877]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012
Jul 10 07:18:13 ab-System-Product-Name acpid: client 28667[0:0] has disconnected

[alex.kostrukov (alex-kostrukov)]

video - Intel gma3600, unity-2D
This bug is repeated periodically

[Daniel (dansul)]

I'm on intel gma 4500mhd and this bug also affects me. Why is this a duplicate of bug #973096 when other people without nvidia cards are affected?

[Francisco Soares (forbidden404)]

Because they're lazy

[ricardisimo (ricardisimo)]

I'm posting here (rather than the duplicate) only because I seem to be noticing that the only constant is significant network activity (loading a page, launching pan newsreader, bittorrent, etc.) I'm not 100% certain, but I can't recall the machine ever crashing while I was, say, just playing a game or working on a document. At a bare minimum there was something downloading in the background while I did other stuff, then... boom.

I've also subscribed to this bug: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/594408.

[1337ing Disorder (scott-johnstone)]

Also posted this in the dupe thread but since it's related to the most recent comment I'm posting here too.

I've also noticed that this bug is only present when there's high network activity.

If I'm not running any torrents or streaming anything the system will stay logged into the same session indefinitely -- I can watch x264 video, play openGL games, etc, with no crashy behaviour... But if I'm downloading lots of torrents the session will log out randomly even if I'm not doing anything graphics-intensive (eg, 5 mins ago it logged me out while the only things open were qbittorrent and a nautilus window).

I think we've been barking up the wrong tree with the graphics drivers. I'd suggest looking into the network drivers.

[Rens Ariens (rens-elu)]

I had the same problems, even with the latest nvidia beta drivers. Tried everything, but what solved it was simple: not using Chrome. I'm currently typing this on Firefox and i'm finally crash-free for 2 hours in a row. Did not even make 15 minutes when using Chrome.

[Jonathan Mullins (j-mullins)]

I began experiencing this problem immediately after booting up with a Logitech Unifying receiver connected. Not sure if there's a correlation or not.

[1337ing Disorder (scott-johnstone)]

Is there anyone who's following this thread who doesn't have Chrome installed but is having the random log-out issue?

[1337ing Disorder (scott-johnstone)]

Nevermind, Rens posted in the dupe thread saying that he's also been crashing with FireFox.

[1337ing Disorder (scott-johnstone)]

I request to have this bug un-marked as a dupe of Bug #973096 and have it separately triaged.

Bug #973096 is definitely related to the graphics drivers.

I'm fairly certain this is not a duplicate bug, as my crashing seems to be unrelated to video but related instead to the networking. No problems with my GeForce, video, or accelerated graphics, but crashes do occur when I'm just fiddling on the desktop or doing stuff that isn't graphics-related.

[Zibodiz (zibodiz)]

This also effects me. I have a Fujitsu T5010 with Intel video. For me, it happens quite randomly. I've had it happen even with no web browsers open, but it always happens while I'm typing. Most often, it happens when I'm on the speed dial page in Opera, typing a search query into my Google search box.

[Zibodiz (zibodiz)]

This is definitely not related to Unity 3D, because I switched to 2D last night, and already this morning it logged me out without warning. This time I was attempting to type a comment on Facebook beneath a photo in Opera. I had not used flash at all since last boot. The first 2 characters of my comment appeared, then before the third had appeared on the screen, I was logged out. I'm also post #97; I have Intel Integrated Graphics on a C2D processor.

[jondecker76 (jondecker76-gmail)]

I have this autologout problem daily. Its down right unacceptable that nothing is being done about it. My wife runs a photography business and it will just randomly log out on her several times per day while editing in Gimp - it happens randomly here, not only when watching videos or using firefox.

Here is a segfault from a crash that just happened.
[code]
Jul 27 12:55:57 main-desktop kernel: [11597.562389] Xorg[1443]: segfault at b4f04000 ip b48453fe sp bfb634b0 error 7 in nvidia_drv.so[b4787000+706000]
[/code]

[6saturdays (solutions-6saturdays)]

Same issue, but I do NOT have a nvidia card. I have Intel embedded on a Lenove T410.

I've been running 12.04 since it came out, but I've just started to have this problem a couple of weeks ago or less.

This usually happens right after I wake my computer from sleep; just after the computer wakes, I log in, and then it suddenly will log out, closing all my open applications shortly there after.

I should also note, the about 2 months ago, I started noticing that it takes a really long time from my computer to wake from sleep, like a minute and a half. Then I get some watch dog errors in the terminal just before the GUI comes back up.

Thanks,
Ryan

[ricardisimo (ricardisimo)]

Weird... scrolling on a webpage really does seem to be a dominant feature of this bug. It just happened again. What does that mean?

[HousieMousie2 (housiemousie2)]

Running 32bit Ubuntu 12.04 (fully updated) on a 64bit machine.
NVIDIA-Linux-x86-295.59
Machine not set to sleep, hybernate, take naps, nod off... :)
Not even a screensaver or power saving screen dimming.
Like others, has happened during YouTube and streaming video.

[grass_hopppa (lukchmiel)]

Ok, guys. There seem to be no reasonable solution to this problem.

Here I am giving an unreasonable one: install kde and use it (I did it and it works). If the problem is solved (what I doubt will happen soon) then u can move back to unity or gnome by simply choosing it in the menu. Maybe it is even better to reinstall and start using kubuntu.
In any case, it seems clear that solution to our problems in ubuntu will not happen soon.

Greetings!

[Benjamin Halbrock (kontakt-bennis-blog)]

Hello, I am on an Intel i3 with integrated graphics and it only seems to happen if I watch a flash video in Chromium right after wakeup from standby

lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated Graphics Controller (rev 02)

Syslog: rtkit-daemon[1929]: Recovering from system lockup, not allowing further RT threads

[JanisA (janis-adati)]

Same problem on DELL V131
cpu - intel i5 &
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

I will try to post more form logs after next X session crash

[DJ (ke7mbz)]

This has nothing to do with NVidia. I have an Intel 4500 GMA. I think I've finally reached the end of my rope with Ubuntu. Just when it's working for you, they break it. Unity worked very well on my ACER 1410 laptop under 11.04, surprisingly, though it was expected to have many bugs. But instead of it get refined over the last year, it seems to be just getting more unstable. I'd hoped to stay with the LTS for awhile, but I probably won't be staying with Ubuntu at all.

I could never get Unity to work reliably on my desktop, and have long since replace it with KDE, which has been almost rock solid stable. I don't like the UI as well, but it has it's own strengths.

I've also noticed the logouts seem to happen when I'm using the web browser (Chromium), though I haven't verified that.

Almost every time it boots, or resumes from suspend, I get an error message asking if I want to submit a report. Clicking continue only leads me in an endless circle of pop messages.

I've tried to be patient with Ubuntu, and had high hopes for it. But since upgrading to 12.04, I've gone a month without printing, suffered scores of random log-outs ( with the resulting lost data and time), and constant error messages. A fresh install didn't help at all. There's the possibility of sticking with Kubuntu, but the frequent indifference shown to major bugs like this has left me very disenchanted.

[Syed Aamir (aamir303)]

I have a lenovo L520, with 12.04 32-bit release. I have an intel graphic card, so it has nothing to do with NVIDIA !

Happens with Unity, Unity 2D, Gnome classic (and new variants). It ONLY HAPPENS when I close my lid and wakes up sometimes later ! (and not after a fresh restart)

Will this a clue to someone out there ?

[Daniel van Vugt (vanvugt)]

All,

The reporter of this bug provided a log file in comment #13 showing he was using NVIDIA. Although I can't yet see the full evidence that this is a duplicate of bug 973096.

If you are not using NVIDIA then please log a new bug using the "ubuntu-bug" command.

[Chris Young (chris-0zxv)]

I've logged bug #1036868 for what appears to be the same issue on an EeePC (Intel graphics)

[Tanmay Deshpande (tanmaydesh5886)]

I have a Intel i5 (1st gen) processor and ATI Radeon 5400 series graphics card. I have noticed that it keeps logging me off when I start skype.. not sure if that's relevant. Just wondering if that's the case with anyone else

[megain (lunch-j)]

same thing i7 hd3000

[crispy (efisker)]

This bug also affects me. I have a core i5 2430M using the intel driver.

Initially I thought this to be a problem with the intel drivers, but seeing people with amd and nvidia cards have the same problem I don't know where to point my finger. Its not the DE, as this has happened with both KDE, unity and gnome 3 in ubuntu 12.04. In dmesg lines like these appear:

Xorg[11692]: segfault at 7ffb00000011 ip 00007ffbc0ab11b8 sp 00007fff56de3090 error 4 in Xorg[7ffbc0989000+1f0000]

The crashes seem to happen randomly, although more frequently just after waking from suspend, often just seconds after unlocking the screen.

[justin parker (s0m3f00l)]

Ha thought I was the only one! Now that its into support phase I wonder if anyone is even looking at this... I've had this bug since Beta.

[Kaitlin Duck Sherwood (ducky)]

Me too.

$ lspci | grep VGA
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)

From Xlog.0.log.old
Backtrace:
[117963.842] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f23909f0846]
[117963.842] 1: /usr/bin/X (0x7f2390868000+0x18c6ea) [0x7f23909f46ea]
[117963.842] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f238fb8e000+0xfcb0) [0x7f238fb9dcb0]
[117963.842] 3: /usr/bin/X (XIChangeDeviceProperty+0x1c8) [0x7f23909901b8]
[117963.842] 4: /usr/bin/X (0x7f2390868000+0x12882b) [0x7f239099082b]
[117963.842] 5: /usr/bin/X (0x7f2390868000+0x4e8a1) [0x7f23908b68a1]
[117963.842] 6: /usr/bin/X (0x7f2390868000+0x3d7ba) [0x7f23908a57ba]
[117963.842] 7: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f238ea2376d]
[117963.842] 8: /usr/bin/X (0x7f2390868000+0x3daad) [0x7f23908a5aad]
[117963.842] Segmentation fault at address 0x7f2300000011
[117963.842]
Caught signal 11 (Segmentation fault). Server aborting

[Pili (pili)]

Hello,
I have the same trouble the the first post, but i'm have AMD processor and ATI graphic card and i'm using free drivers ( not nvidia ).

[Ben Kuhn (ben-s-kuhn)]

This is not a duplicate of #973096; I'm experiencing it with Intel graphics. I'm using 12.04 with a GNOME+xmonad session on a ThinkPad T520. (It's either rarer or nonexistent when using a Unity session.) Dmesg contains the line

    [10170.765098] Xorg[1318]: segfault at 7fa300000011 ip 00007fa34b0b71b8 sp 00007fff90fa6a10 error 4 in Xorg[7fa34af8f000+1f0000]

and Xorg.0.log.old has

[ 10193.121]
Backtrace:
[ 10193.122] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7fa34b117846]
[ 10193.122] 1: /usr/bin/X (0x7fa34af8f000+0x18c6ea) [0x7fa34b11b6ea]
[ 10193.122] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fa34a2b5000+0xfcb0) [0x7fa34a2c4cb0]
[ 10193.122] 3: /usr/bin/X (XIGetDeviceProperty+0x40) [0x7fa34b0b7370]
[ 10193.122] 4: /usr/bin/X (0x7fa34af8f000+0x128452) [0x7fa34b0b7452]
[ 10193.122] 5: /usr/bin/X (0x7fa34af8f000+0x128a5a) [0x7fa34b0b7a5a]
[ 10193.123] 6: /usr/bin/X (0x7fa34af8f000+0x4e8a1) [0x7fa34afdd8a1]
[ 10193.123] 7: /usr/bin/X (0x7fa34af8f000+0x3d7ba) [0x7fa34afcc7ba]
[ 10193.123] 8: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7fa34914a76d]
[ 10193.123] 9: /usr/bin/X (0x7fa34af8f000+0x3daad) [0x7fa34afccaad]
[ 10193.123] Segmentation fault at address 0x7fa300000019
[ 10193.123]
Caught signal 11 (Segmentation fault). Server aborting
[ 10193.123]

I can give the rest of my dmesg, lspci, etc. if needed. I hope this is fixed in 12.10 - this bug is extremely annoying! Thanks!

[Kostas Manetakis (kostas-manetakis)]

I have the same problem on a Fujitsu P3110 netbook with 12.04,Classic-Gnome (no effects), 256G SSD, no nvidia card. After a fresh install with 12.04.1, I got the problem a day or so later.

It has been running with no Xorg crash so far after the following change:

(1) Created a xorg.conf with
 sudo X :1 -configure
which creates a xorg.conf.new in the ~ directory. Then,
 sudo cp ~/xorg.conf.new /etc/X11/xorg.conf
to copy it to the /etc/X11/ directory
(2) Inspecting the xorg.conf I saw that it had created Screen0, Screen1 & Screen2 Sections. I removed the Screen1 & Screen2 sections. My xorg.conf now looks as shown below:

Section "ServerLayout"
 Identifier "X.org Configured"
 Screen 0 "Screen0" 0 0
 InputDevice "Mouse0" "CorePointer"
 InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
 ModulePath "/usr/lib/xorg/modules"
 FontPath "/usr/share/fonts/X11/misc"
 FontPath "/usr/share/fonts/X11/cyrillic"
 FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
 FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
 FontPath "/usr/share/fonts/X11/Type1"
 FontPath "/usr/share/fonts/X11/100dpi"
 FontPath "/usr/share/fonts/X11/75dpi"
 FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
 FontPath "built-ins"
EndSection

Section "Module"
 Load "glx"
 Load "dri2"
 Load "dri"
 Load "dbe"
 Load "extmod"
 Load "record"
EndSection

Section "InputDevice"
 Identifier "Keyboard0"
 Driver "kbd"
EndSection

Section "InputDevice"
 Identifier "Mouse0"
 Driver "mouse"
 Option "Protocol" "auto"
 Option "Device" "/dev/input/mice"
 Option "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
 Identifier "Monitor0"
 VendorName "Monitor Vendor"
 ModelName "Monitor Model"
EndSection

Section "Device"
        ### Available Driver options are:-
        ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
        ### <string>: "String", <freq>: "<f> Hz/kHz/MHz",
        ### <percent>: "<f>%"
        ### [arg]: arg optional
        #Option "DRI" # [<bool>]
        #Option "ColorKey" # <i>
        #Option "VideoKey" # <i>
        #Option "FallbackDebug" # [<bool>]
        #Option "Tiling" # [<bool>]
        #Option "LinearFramebuffer" # [<bool>]
        #Option "Shadow" # [<bool>]
        #Option "SwapbuffersWait" # [<bool>]
        #Option "TripleBuffer" # [<bool>]
        #Option "XvMC" # [<bool>]
        #Option "XvPreferOverlay" # [<bool>]
        #Option "DebugFlushBatches" # [<bool>]
        #Option "DebugFlushCaches" # [<bool>]
        #Option "DebugWait" # [<bool>]
        #Option "HotPlug" # [<bool>]
        #Option "RelaxedFencing" # [<bool>]
 Identifier "Card0"
 Driver "intel"
 BusID "PCI:0:2:0"
EndSection

Section "Screen"
 Identifier "Screen0"
 Device "Card0"
 Monitor "Monitor0"
 SubSection "Display"
  Viewport 0 0
  Depth 1
 EndSubSection
 SubSection "Display"
  Viewport 0 0
  Depth 4
 EndSubSection
 SubSection "Display"
  Viewp...

[Kostas Manetakis (kostas-manetakis)]

Xorg crashes again after suspending, resuming and moving one finger frantically on the touch-pad.

The issue may be related to the one reported on Debian: https://bugs.launchpad.net/debian/+source/xorg-server/+bug/956071

Tried downgrading the xserver-xorg-input-synaptics package to 1.5.99.902-0ubuntu5 as suggested there, but it does not help.

[Yotis (yotisvag-g)]

It just hapened to me too.

12.04 LTS
ati/amd proprietary FGLRX graphics driver

I run my present configuration more than two months. It just hapened yesterday and today with only changes installing ecryptfs-utils and cryptsetup packages. I hadn't encrypt my home folder during instalation and i desided to do it yesterday. Since then 3 random log offs occured.

[Kostas Manetakis (kostas-manetakis)]

I installed Linux Mint 13, the Mate variety. I don't seem to get the crash anymore. The system looks pretty stable.

Interestingly, after installing the light-themes package (for a ...ubuntu-like look), I was immediately able to reproduce the crash. Removing light-themes or simply using the standard Mint themes fixed the problem.

Any clues here?

[Donald Siuchninski (dsiuchninski)]

Package Xorg

Using a Lenovo t410 - Intel ® Integrated Graphics and NVIDIA® NVS3100M Discrete Graphics

Bubmblebee is installed.

I can confirm that this does not happen without bumblebee.

For me, logoff occurs immediately after returning from suspend. I then get this message:

"An problem has been detected." Followed by an apport popup that doesn't seem to work.

[1337ing Disorder (scott-johnstone)]

Hmmm toda has set the status as "Fix released" but he hasn't actually told us what this fix is.

Can anyone (or toda) please outline what the fix is?

[albech (ubuntu-albech)]

Still experience this problem. Very sad that we soon reach 12.10 and 12.04 LTS is still not stable :(

[proxylittle (proxylittle)]

For those using nvidia drivers:

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update && sudo apt-get dist-upgrade

seems to have fixed the problem for me since toda 'fix released' nvidia-drivers.

If still not working try this thread with manual fixes:
https://bugs.launchpad.net/linuxmint/+bug/889706

[albech (ubuntu-albech)]

Can confirm that #124 did improve stability. Will do more testing.

[Riku (rikuhan)]

I have this kind of problem too. When I power on my computer, auto log in to Ubuntu 12.04,viivaviivaviivaviiva then there are few little flickering lines top of the screen. I can open software and do pretty much anything, but when I push ENTER first time, it logs out to log on screen and after that the problem does not exist until I shut down my computer and start over.

I have AMD HD4850, not Nvidia, I'm using those drivers from the 'Additional Drivers'.

[ricardisimo (ricardisimo)]

No crashes since upgrading nvidia-current to 304.43-0ubuntu1~precise~xup1. I'm curious if anyone else with nvidia cards has an issue with Adobe flash. Separate issue, I know, but still unresolved here and working fine on my ATI machine.

[Huseyin (hkucuktas)]

I did exactly what #124 provided, problem still exists. Dell T5400, Nvida, double monitor.

[Ben Kuhn (ben-s-kuhn)]

This issue has become even more frequent recently. Xorg now segfaults every 3-4 suspends. I also frequently get popups saying "A system problem has been detected" (haven't observed any ill effects with these, though). I have a Thinkpad T520 with Intel HD 4000 graphics.

[albech (ubuntu-albech)]

My system has been rock solid since #124.
i7/nvidia 250gtx - dual monitor

Thanks for the fix.

[Omer Akram (om26er)]

Don't throw a comment just because you see a crash. The issue with Nvidia have been fixed in the latest nvidia drivers. If you are on fglrx then you are totally facing a different issue, try switching between the drivers and see if that proves of any help to you. "me too" in this type of bug reports is useless.

[Risto Ronkka (ristoronkka)]

I did update yesterday (14th September) and after that when I try to start Firefox, Thunderbird or Details, (12.04LTS) system logs out. I can start Libreoffice with no problem. Google earth shuts down but does not logout the system. I have old Intel +, nvidia+benq system. When I tried to fix the problem as #124 says and tried logout, there was messages about missing keyring password but logout did happen. Then I tried to change the resolution, disable network with no effect. Something odd looking was on login screen, resolution changed to high resolution but changed back to lower resolution.

[Sunil K Chopra (sunil-sunilkchopra)]

This is driving me mad. It may happen when I switch desktops, using CTRL+ALT+arrow keys. Not certain.

Lenovo L412, Ubuntu 12.04 LTS 64-bit. Upgraded from 11.10.

[Jonathan Mullins (j-mullins)]

The fix released on 11th Sep 2012 stopped the random logoffs occurring for me - however since updating my machine yesterday (24th Sep 2012) the problem is back again - I see weird pixelated artefacts on my desktop after logging in, and then get logged off shortly after launching Google Chrome. After logging back in the problem is gone. Let me know if you want some log files etc.

[Andrew Golding (andy-chicagobikepolo)]

I never hit this bug until a very recent update

[Kirils Solovjovs (linux-kirils)]

This first started happening to me not more than a week ago.

[Orsolya Vincze (orsolyaaa)]

Just upgraded to 12.04 last night. Random logout happened with Lucid about twice in a year. With 12.04 it happenes when I try to run run_mesquite.sh file in terminal. It's a phylogenetic tree editing program. Pretty annoying issue!!!

[alex.kostrukov (alex-kostrukov)]

I never hit this bug until a very recent update

[John Salvatier (jsalvatier)]

I've been hitting this bug for a while now.

[Bart Janssens (bartholomeus-j)]

Same effect here when using chrome, mostly with videos.
Its an upgrade to 12.10 of a recent 12.04 install nvidia vidcard.
I haven't enabled the nvidia drivers yet, running the default nouveau after the upgrade, i'll try purging whatever is left of nvidia pakages and report back.

[Bart Janssens (bartholomeus-j)]

Same effect after purging nvidia leftovers and reboot, chrome is unusable.
Not sure about other programs, upgraded yesterday.

[Bart Janssens (bartholomeus-j)]

After some more searching I've located what caused my problem. I had burg installed (graphical boot) and it did not get updated so it just booted the 3.2 kernel instead of the 3.5 one installed by ubuntu 12.10.
Ofcourse this triggers a lot of problems :) Now that I booted the 3.5 kernel no more sudden restarts.

[ronnie_t (ronnietee)]

Confirmed: No crashes since upgrading nvidia-current to 304.43-0ubuntu1~precise~xup1

[zzecool (zzecool)]

I have the same exact problem in 12.10 running the latest updates

Im crashing to the login screen without any errors to the Xorg.log ....... whenever i try to play a video .

What i did is uninstall my nvidia 310 drivers ( that was working perfectly , i only got this problem today though i was using 310 for almost a month) and used the open source ubuntu default nouveau and the problem is still here .

So there is nothing to do with the nvidia proprietary drivers. The culprit is somthing else and it isnt fixed yet although the bug says fixed.

[zzecool (zzecool)]

I found the culprit .

The problem the xfs font server in the xorg.conf

The fix is to #comment or delete the xfs font paths in the Xorg.conf

[Gregory Wells (r-regs)]

Still haven't gotten a fix to this issue. My Xorg.conf doesn't have any xfs font paths. This started as soon as upgraded to Ubuntu 12.04 LTS. Anyone with a vetted fix???

[Marcin Domański (marcin-doman)]

Looks like this bug is affecting me as well. Like may others, I am also running 12.04.1 + nvidia, with 310.14 proprietary drivers and 3.2.0-34.53 kernel. But I am experiencing it under Gnome Classic.

From my recent observations, it ALWAYS happens in the same way:
* always on startup (I log in automatically)
* and after pressing ENTER in a application, be it Google Chrome (the address field, or search field in gmail) or Gnome Terminal. It looks like the trigger is always the ENTER key. I key in a URL, or a command in the terminal and press ENTER, and then it happens, always.

After logging in again, the problem disappears.

[Gareth Fare (gareth-fare)]

I had this problem today, If I start Google Chrome or Chromium it logs me out of X.

uname -a gives

Linux garethf-System-Product-Name 3.5.0-19-generic #30-Ubuntu SMP Tue Nov 13 17:48:01 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

and I'm using propriety NVIDIA-Linux-x86_64-310.19

The Xorg.0.log showed a NULL deref in /usr/bin/Xorg. I can only guess that some of the kernel headers must have updated yesterday as it was working fine, but not enough for the nVidia driver not to work. I fixed it by rebuilding the propriety nVidia drivers. All seems to be working fine now, might be related to this so posting just in case it helps anyone.

[A.RICHARD (1-contactmonsieur-floss)]

I'd like to share a 3 hours hint success here, because I used the keywords "ubuntu logout bug" and first landed here.

But my answer was here: ".Xauthority sometimes owned by root, which blocks login"
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/871667/comments/30

[Javier Schwersensky (javisw)]

Thank you to those who filed the bug report and those who worked on a solution. My NVIDIA driver was stable until I made a change in the xorg file (to use two screens). Then the random logouts began with certain applications only (Skype and VirtualBox most notably). The solution proposed here seem to have fixed the issue. I am running 12.04 LTS 64-bit, ASUS laptop with NVIDIA video card, cinnamon desktop.

[Menno van Alz (menno-van-alz)]

I've something like that, but with fglrx and KDE.
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1042327

[sonmez (sonmezsahut)]

I starting having this problem on my Ubuntu 12.04 since several days ago.

[R G Gordon (greygordon)]

I was having the exact same issue as Marcin Domanski #149. In addition, I was having screen artifacts.

Switching from the proprietary Nvidia version current to post-release updates fixed the issue (for 30 minutes now). Hopefully will continue and work for you!

[R G Gordon (greygordon)]

Actually, it's broken again. Sorry for the misinformation.

[sandeeproop (sandeeproop)]

Me and my team all of them are using Ubuntu 12.04 LTS and from 4-5 days we are also facing the same problem.
While working suddenly system is logged off and all the work which is not saved is lost.
There is no particular steps to reproduce this.
But this is happening for me at least once a day.

[LexLythius (lexlythius)]

Same problem as sandeproop above and others.
Ubuntu 12.04 LTS, kernel 3.2.0-40, amd64
AMD Radeon HD 3300 (open source drivers; had proprietary installed but purged them as per wiki.cchtml.com/index.php/Ubuntu_Precise_Installation_Guide#Removing_Catalyst.2Ffglrx ).

Apparently, the X server had a segmentation fault, see attached log.

[LexLythius (lexlythius)]

I am also attaching .xsession-errors file.

Note that earlier in the day, compiz had crashed and reopened automatically. But that doesn't always happen, AFAIK.

[Illu (illu)]

I have the same problem with ubuntu-studio 13.04. System just randomly logs out, most common when starting up/shutting down a program.

[Riyugi, Murakami (murakamiriyugi)]

Ubuntu 12.04.2. Ubuntu logs off randomly.
Something unusual happends in my case. When
the screen goes blank, if you do not move
the mouse or press any key, wait for some time,
and then slide your finger on the mousepad, the
system goes back to normal. But if the screen goes
blank (you panic) and press any key immediately
or do some mouse clicks, it goes to the login
screen.

[I also get up to one to three total freeze per day]

System Information:
DistroRelease: Ubuntu 12.04
Uname: Linux 3.5.0-34-generic x86_64
NonfreeKernelModules: wl fglrx
ApportVersion: 2.0.1-0ubuntu17.3
Architecture: amd64
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
InterestingModules: rfcomm bnep bluetooth
MachineType: ASUSTeK COMPUTER INC. U38N
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.5.0-34-generic root=UUID=d3189321-36df-497c-a331-8e942669bf3e ro quiet splash vt.handoff=7
dmi.bios.date: 11/22/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: U38N.204
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: U38N
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrU38N.204:bd11/22/2012:svnASUSTeKCOMPUTERINC.:pnU38N:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnU38N:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.name: U38N
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
hciconfig:

syslog:

[ciro santoro (cirux88)]

Same problem on Ubuntu 12.04 with HP Pavilion dv5, nvidia geforce with proprietary drivers. Usually I've always Chrome opened.

[ינון-דוד-צדוק (Yinon-David-Zadok) (yinon-david-zadok)]

Lubuntu 13.04, just logging out, no sign befre it gonna be, just black screen, audio stopped (one before the other), then no signal for a few minutes, and then I get to the log screen.

Is there any solution? which file sould I check and tell you about?

Thanks!

My PC (long... :D ):
pentium4
    description: Desktop Computer
    product: PROD00000000
    vendor: OEM00000
    width: 32 bits
    capabilities: smbios-2.3 dmi-2.3 smp-1.4 smp
    configuration: boot=normal chassis=desktop cpus=1
  *-core
       description: Motherboard
       product: MS-6540
       vendor: MICRO-STAR INTERNATIONAL CO., LTD
       physical id: 0
     *-firmware
          description: BIOS
          vendor: Phoenix Technologies, LTD
          physical id: 0
          version: 6.00 PG
          date: 01/13/2005
          size: 128KiB
          capacity: 448KiB
          capabilities: isa pci pnp apm upgrade shadowing escd cdboot bootselect socketedrom edd int13floppy360 int13floppy1200 int13floppy720 int13floppy2880 int5printscreen int9keyboard int14serial int17printer int10video acpi usb agp ls120boot zipboot
     *-cpu:0
          description: CPU
          product: Intel(R) Pentium(R) 4 CPU 3.00GHz
          vendor: Intel Corp.
          physical id: 4
          bus info: cpu@0
          version: 15.4.1
          serial: 0000-0F41-0000-0000-0000-0000
          slot: Socket 478
          size: 3GHz
          capacity: 4GHz
          width: 32 bits
          clock: 200MHz
          capabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts pni dtes64 monitor ds_cpl cid xtpr
          configuration: id=1
        *-cache:0
             description: L1 cache
             physical id: 8
             slot: Internal Cache
             size: 32KiB
             capacity: 32KiB
             capabilities: synchronous internal write-back
        *-cache:1
             description: L2 cache
             physical id: 9
             slot: External Cache
             size: 1MiB
             capacity: 1MiB
             capabilities: synchronous external write-back
        *-logicalcpu:0
             description: Logical CPU
             physical id: 1.1
             width: 32 bits
             capabilities: logical
        *-logicalcpu:1
             description: Logical CPU
             physical id: 1.2
             width: 32 bits
             capabilities: logical
     *-memory
          description: System Memory
          physical id: 18
          slot: System board or motherboard
          size: 1GiB
          capacity: 2GiB
        *-bank:0
             description: DIMM SDRAM Synchronous
             product: None
             vendor: None
             physical id: 0
             serial: None
             slot: A0
             size: 512MiB
             width: 64 bits
        *-bank:1
             description: DIMM SDRAM Synchronous
             product: None
             vendor: None
             physical id: 1
             serial: None
             slot: A1
             size: 512MiB
             width: 64 bits
     *-cpu:1
          pro...

[David Scott (tdavid-scott3)]

I now have this issue, I have noticed that is only occuring with the Google Chrome/Chromium packages. I also noticed that this error resets Xorg. I have included the Xorg.0.log file where the Seg Fault is.

OS : Ubuntu 12.04
Video Driver : NVidia version 319 (Recommended / Stable)
CPU : 8 Core Dual Intel(R) Xeon(R) CPU E5506 @ 2.13GHz
Memory : 16 G

To replicate this error / known bug; simply log in, and start google chrome or chromium, count 2 or 3 seconds and whamo, seg fault.

[Begin Xorg Output]

[ 3260.021] (II) NVIDIA(GPU-0): Vision stereo.
[ 3260.021] (**) NVIDIA(0): Using HorizSync/VertRefresh ranges from the EDID for display
[ 3260.021] (**) NVIDIA(0): device DELL E176FP (CRT-1) (Using EDID frequencies has
[ 3260.021] (**) NVIDIA(0): been enabled on all display devices.)
[ 3260.102] (II) XKB: reuse xkmfile /var/lib/xkb/server-03AF3717FF3AB439A4BAABA686CCB40771CDF520.xkm
[ 3280.265] (II) NVIDIA(GPU-0): Display (DELL E176FP (CRT-0)) does not support NVIDIA 3D
[ 3280.265] (II) NVIDIA(GPU-0): Vision stereo.
[ 3280.265] (**) NVIDIA(0): Using HorizSync/VertRefresh ranges from the EDID for display
[ 3280.265] (**) NVIDIA(0): device DELL E176FP (CRT-0) (Using EDID frequencies has
[ 3280.265] (**) NVIDIA(0): been enabled on all display devices.)
[ 3280.281] (II) NVIDIA(GPU-0): Display (DELL E176FP (CRT-1)) does not support NVIDIA 3D
[ 3280.281] (II) NVIDIA(GPU-0): Vision stereo.
[ 3280.281] (**) NVIDIA(0): Using HorizSync/VertRefresh ranges from the EDID for display
[ 3280.281] (**) NVIDIA(0): device DELL E176FP (CRT-1) (Using EDID frequencies has
[ 3280.281] (**) NVIDIA(0): been enabled on all display devices.)
[ 3942.556]
Backtrace:
[ 3942.557] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f5f3648ba86]
[ 3942.557] 1: /usr/bin/X (0x7f5f36303000+0x18c92a) [0x7f5f3648f92a]
[ 3942.557] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f5f35629000+0xfcb0) [0x7f5f35638cb0]
[ 3942.557] Segmentation fault at address (nil)
[ 3942.557]
Caught signal 11 (Segmentation fault). Server aborting
[ 3942.557]
Please consult the The X.Org Foundation support
  at http://wiki.x.org
 for help.
[ 3942.557] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 3942.557]
[ 3942.684] (II) evdev: Power Button: Close
[ 3942.684] (II) UnloadModule: "evdev"
[ 3942.684] (II) Unloading evdev
[ 3942.764] (II) evdev: Power Button: Close
[ 3942.764] (II) UnloadModule: "evdev"
[ 3942.764] (II) Unloading evdev
[ 3942.764] (II) evdev: USB2.0 PC CAMERA: Close
[ 3942.764] (II) UnloadModule: "evdev"
[ 3942.764] (II) Unloading evdev

[twin (twintux)]

Installing OEM Keyrings solve this problem for me.
http://www.archive.canonical.com/pool/public/c/canonical-oem-keyring/canonical-oem-keyring_2009.07.23+build3_all.deb

[Anton Vasyunin (thevasya)]

Have same Ubuntu behavior in Firefox on page reload while doing rake preview for a website. I'm using ATI Radeon 7790 with proprietary driver.

Here's Xorg log:

Backtrace:
[ 42837.715] 0: /usr/bin/X (xorg_backtrace+0x26) [0x7f4e43821a86]
[ 42837.715] 1: /usr/bin/X (0x7f4e43699000+0x18c92a) [0x7f4e4382592a]
[ 42837.715] 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f4e429bf000+0xfcb0) [0x7f4e429cecb0]
[ 42837.715] 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7f4e4182e000+0x14dda4) [0x7f4e4197bda4]
[ 42837.715] 4: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so (0x7f4e3b87c000+0x713e8) [0x7f4e3b8ed3e8]
[ 42837.715] 5: /usr/lib/x86_64-linux-gnu/xorg/extra-modules/modules/glesx.so (0x7f4e3b87c000+0x6cddb) [0x7f4e3b8e8ddb]
[ 42837.715] 6: /usr/bin/X (0x7f4e43699000+0x1165d4) [0x7f4e437af5d4]
[ 42837.715] 7: /usr/bin/X (0x7f4e43699000+0x10fd79) [0x7f4e437a8d79]
[ 42837.716] 8: /usr/bin/X (0x7f4e43699000+0x4e8a1) [0x7f4e436e78a1]
[ 42837.716] 9: /usr/bin/X (0x7f4e43699000+0x3d7ba) [0x7f4e436d67ba]
[ 42837.716] 10: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed) [0x7f4e4184f76d]
[ 42837.716] 11: /usr/bin/X (0x7f4e43699000+0x3daad) [0x7f4e436d6aad]
[ 42837.716] Segmentation fault at address 0x7f4e35051010
[ 42837.716]
Caught signal 11 (Segmentation fault). Server aborting
[ 42837.716]
Please consult the The X.Org Foundation support
  at http://wiki.x.org
 for help.
[ 42837.716] Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 42837.716]
[ 42837.752] (II) evdev: Power Button: Close
[ 42837.752] (II) UnloadModule: "evdev"
[ 42837.752] (II) Unloading evdev
[ 42837.756] (II) evdev: Power Button: Close
[ 42837.756] (II) UnloadModule: "evdev"
[ 42837.756] (II) Unloading evdev
[ 42837.760] (II) evdev: Device USB Device: Close
[ 42837.760] (II) UnloadModule: "evdev"
[ 42837.760] (II) Unloading evdev
[ 42837.764] (II) evdev: Device USB Device: Close
[ 42837.765] (II) UnloadModule: "evdev"
[ 42837.765] (II) Unloading evdev
[ 42837.768] (II) evdev: Eee PC WMI hotkeys: Close
[ 42837.768] (II) UnloadModule: "evdev"
[ 42837.768] (II) Unloading evdev
[ 42837.772] (II) evdev: AT Translated Set 2 keyboard: Close
[ 42837.772] (II) UnloadModule: "evdev"
[ 42837.772] (II) Unloading evdev
[ 42837.772] (II) AIGLX: Suspending AIGLX clients for VT switch
[ 42837.774] (II) fglrx(0): Backup framebuffer data.
[ 42837.852] (II) fglrx(0): Backup complete.
[ 42838.027] ddxSigGiveUp: Closing log
[ 42838.027] Server terminated with error (1). Closing log file.

[Reinis Ivanovs (dabas)]

Just happened to me in 13.10, I was logged off without any warning, using Unity and AMD proprietary drivers.

[eMKi (mkisovec)]

Wow got similar behavior as described in this bug just yesterday after an update.

So when I log in and the Unity desktop should become visible the Welcome screen comes back asking again for a password.
If I try XFCE I do get the desktop but when I try to start any programs there is a crash and the Welcome screen comes up asking for the password.

I use Nvidia Quadro card and Ubuntu 13.10.

So the bug might not be fixed. Before the update I didn't not have this issue.

Kind regards.

[PV (varga-peti)]

I have exactly the same problem as eMKi (mkisovec), but with Ubuntu 14.04 and dual video card system (Intel Hasewell and Nvidia GEForce 840M). I use Nvidia trive 331 and Bumblebee. Used to work pretty fine.
The problem appeared today, may be due to a recently updated package.
Seems that I'm not the only one experiencing this:

http://askubuntu.com/questions/522099/ubuntu-14-04-logs-out-every-5-minutes

[Quang Luong (quang-v-luong)]

I also got this bug recently. At random clicks on random programs (Chrome, web site links, etc), I would get logged out (black screen that flutters constantly between the login until I click on the mouse, move the mouse, type something, or in some cases wait long enough, in which a stable login screen will appear to allow me to log back in). However, I was able to fix this issue by not using unity. Instead I installed gnome and logged out and back in with gnome (I'm using the class with no effects version). Hope this helps.

[Anonymous (reason)]

This bug has starting affecting one of my production servers. I would classify it as "critical". I turned off and uninstalled the screensaver on this computer, but apparently that is not enough to prevent Ubuntu from going to sleep. It will go to sleep by itself even if there is NO SCREENSAVER application installed on the operating system! That is a CRITICAL BUG!!!

So, in an effert to stop the computer from going to sleep, I installed XScreenSaver, and turned it to "never go to sleep, ever" settings. Now I have to start XScreenSaver at startup, to try to PREVENT this machine from going to sleep. But it doesn't work.

Every few days, I'll wake up and be logged out of the machine, server is down, not live to the world. Downtime caused by this bug. If I then try to log back in, it IMMEDIATELY logs me back out! I have to cold restart the whole machine to get back in.

This bug is so critical that I may have to migrate away from Ubuntu if there is no forthcoming solution.

[Christopher Townsend (townsend)]

@Ryan,

This bug is about random log off's, not preventing a machine from going to sleep and issues derived from that. I believe you commented in the wrong bug. Please either find an appropriate bug or enter a new bug report altogether. Thanks!

All others,
This is a bug closed as Fixed Released and is specific to 12.04. If you are seeing similar behavior, please submit a new bug report.

Thanks!

[Alexander Vinbæk Strand (alexstrand7-o)]

Same problem here with Ubuntu GNOME 15.10

[Steven Metzler (bugmansteve)]

Just Upgraded to The New Ubuntu 16.04 with my NVidia G-Force 610 and Still happening. Where is the fix mentioned in this post or do I need to submit a new report for the same issue?

[Lauri Jakku (ljakku77)]

Bug seen, and i got multiple prints like this:

Aug 16 17:11:29 fid654044 kernel: [29660.037662] [drm:radeon_gem_object_create] *ERROR* Failed to allocat
e GEM object (4096, 2, 4096, -12)
Aug 16 17:11:29 fid654044 kernel: [29660.056035] [TTM] Out of kernel memory
Aug 16 17:11:29 fid654044 kernel: [29660.056041] [drm:radeon_gem_object_create] *ERROR* Failed to allocat
e GEM object (4096, 2, 4096, -12)
Aug 16 17:11:29 fid654044 kernel: [29660.056078] show_signal_msg: 1686 callbacks suppressed
Aug 16 17:11:29 fid654044 kernel: [29660.056081] compiz[2870]: segfault at 10 ip 00007ff6b06be69f sp 0000
7ffeda874350 error 4 in r600_dri.so[7ff6b03f6000+3a0000]
Aug 16 17:11:46 fid654044 gnome-session[2780]: WARNING: Application 'gnome-wm.desktop' killed by signal
Aug 16 17:11:46 fid654044 gnome-session[2780]: WARNING: App 'gnome-wm.desktop' respawning too quickly
Aug 16 17:11:46 fid654044 gnome-session[2780]: CRITICAL: We failed, but the fail whale is dead. Sorry....

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Hannnah Fraser (hannahmf)]

I too have this bug on a faily new PC. I have experienced it many times, typically one an hour when using Android Studio. It can be doing anything it seems, I have not got a pattern. I oculd be selecting a file.

It has also happened to me with when Android Studio is not open. I have LTS 14.04 Ubuntu.

[vikram (vikram344)]

the same issue is reflected in ubuntu 16.04 lts ...Any remedy for this issue?

[NJOKU OKECHUKWU VALENTINE (bonsoirval)]

My Dell Latitude E5410 automatically logs me off while am working and closes all my applications.

[pun (pan-denis)]

My Lenovo logs me off when Android device plugged out from PC

[Amitabh (amitabh123)]

This is not an issue with 12.04.
I have experienced this consistently in 16.04, 18.04 and 20.04
I have nvidia, so the common theme seems to be nvidia (however, may not even be that).

I have tried in vain to find a fix for the last 4 years and have now learned to live with it (save frequently, etc). It sucks but not enough to go back to Windows

Recently I plugged in a 3rd monitor to my desktop and the issue seems to have increased

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jeremy Bícha (jbicha)]

Sorry, this bug is very old and this version of Ubuntu isn't supported any more. If you think you have a similar issue, please file a new bug.