Ubuntu 15.10 Idle freezing/screen not waking up

[Ertan Günay]

Hi
Due to some reason, I upgraded my workstation which is HP Workstation xw9400, from 15.04 to 15.10 2 weeks ago.
After upgrade, when the screen turns off itself in 10 minutes (that my system has been set to 10 minutes),
It never comes up back, I mean it never wakes up.
There is only one solution to overcome: Shut down & start up system.
I upgrade the kernel to "4.3.0-040300rc3-generic #201509271225", but it still has same problem.
If you have any solution, I can try.

In addition;
When I'd like to go terminal mode with Ctrl+Alt+F1
Anymore I can't see anything, when the screen turns off itself.
Or If I goes to terminal mode, Ctrl+Alt+Del can reboot system sometimes.
Or sometimes I try Ctrl+Alt+F1 than Ctrl+Alt+Del many times, there is no response from system.
In that case as I said I have to shut down and start up system manually.

Today
I notices, if I lock the system this problem occurs.
When the mentioned problem happened
I connect the system via TeamViewer,
It was completely locked up.
I couldn't type my password to unlock screen.
But at the same time,
The radio which was playing before locked up, was playing.

The last information,
I use 2 different system with same keyboard and mouse via kvm switch.
Perhaps, the reason of problem is connected this module.

Thanks
Ertan

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: firefox 41.0+build3-0ubuntu1
Uname: Linux 4.3.0-040300rc3-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.19-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: egtaroot 8480 F...m pulseaudio
 /dev/snd/controlC0: egtaroot 8480 F.... pulseaudio
BuildID: 20150918092427
Channel: Unavailable
CurrentDesktop: Unity
Date: Tue Sep 29 18:08:53 2015
ExecutablePath: /usr/lib/firefox/firefox
Extensions: extensions.sqlite corrupt or missing
ForcedLayersAccel: False
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite)
InstallationDate: Installed on 2015-02-05 (236 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
IpRoute:
 default via 192.168.100.1 dev eth0 proto static metric 100
 169.254.0.0/16 dev eth0 scope link metric 1000
 192.168.100.0/24 dev eth0 proto kernel scope link src 192.168.100.52 metric 100
IwConfig:
 eth0 no wireless extensions.

 eth1 no wireless extensions.

 lo no wireless extensions.
Locales: extensions.sqlite corrupt or missing
PciNetwork:

Plugins:
 Gnome Shell Integration - /usr/lib/mozilla/plugins/libgnome-shell-browser-plugin.so (gnome-shell)
 Java(TM) Plug-in 11.60.2 - /usr/lib/jvm/java-8-oracle/jre/lib/amd64/libnpjp2.so
 iTunes Application Detector - /usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so (rhythmbox-mozilla)
 Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
PrefSources:
 prefs.js
 [Profile]/extensions/CuteButtonsCrystalSVG@ChoGGi/defaults/preferences/cutebuttons.js
 [Profile]/extensions/{bee6eb20-01e0-ebd1-da83-080329fb9a3a}/defaults/preferences/prefs.js
Profiles: Profile0 (Default) - LastVersion=41.0/20150918092427 (In use)
RelatedPackageVersions:
 gnome-shell 3.16.3-1ubuntu6
 rhythmbox-mozilla 3.2.1-1ubuntu3
RfKill:

RunningIncompatibleAddons: False
SourcePackage: firefox
Themes: extensions.sqlite corrupt or missing
UpgradeStatus: Upgraded to wily on 2015-09-11 (18 days ago)
WifiSyslog:

dmi.bios.date: 12/10/2009
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 786D6 v04.03
dmi.board.asset.tag: 2UA813090V
dmi.board.name: 0A1Ch
dmi.board.vendor: Hewlett-Packard
dmi.board.version: D
dmi.chassis.asset.tag: 2UA813090V
dmi.chassis.type: 6
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr786D6v04.03:bd12/10/2009:svnHewlett-Packard:pnHPxw9400Workstation:pvr:rvnHewlett-Packard:rn0A1Ch:rvrD:cvnHewlett-Packard:ct6:cvr:
dmi.product.name: HP xw9400 Workstation
dmi.sys.vendor: Hewlett-Packard

[Ertan Günay (ergunay)]

Today I tested system with different way.
I set the screen lock time to 1 minute than I waited 1 minute.
After 1 minute, the screen went to black.
I moved mouse and pressed the keyboard.
I didn't awake as I said before.

Than I changed the computer and connect with new computer to locked computer via TeamViewer.
So I noticed that system locks up completely.
In TeamViewer screen, I see only Cairo-Dock.
I cannot see neither background nor icons on desktop.
And I cannot click cairo dock.
But radio or music system is working w/o any problem.

[Ertan Günay (ergunay)]

Hi
Actually this topic is still undecided even through it was so important for me.
Because, this computer is my workstation and sometime I don't use it several days.
And some day I'd like to login to check somthing but the screen never came back.
Ctrl+Alt+F1 or other combination didn't response till reboot the system.
Or I'd like to get a communication via TeamViewer but this screen is same real one as black.
So last 2-3 months I was very busy to overcome problem.
Because OS reinstallation should be last solution which called plan Z.

So
Yesterday I typed following commands than the problem fixed.
     dm-tool lock
     light-locker-command
     light-locker &
     light-locker-command -l
     lxlock
     sudo reboot

After booting up, the system has been back to normal.

Thanks
Ertan

[psylem (subnetjet)]

I have this problem. I found I can get the login screen back if I Ctrl+Alt+Backspace.

How did you come to the conclusion to use those commands?

[Ertan Günay (ergunay)]

Sorry
It was wrong that I wrote on 27th Oct.
On first reboot everything was seeming ok but next reboots I had same.
And I had been tried too many thing and I installed too many drives and program.
Actually my observation was wrong and the problem still goes on.

So
I installed the OS 15.10 from the beginning
(I remove old OS but home directory still same due to several reason)
But the problem still goes on
I dont know what should I do.

[psylem (subnetjet)]

Actually, I fixed this issue on my system by downgrading my nVidia drivers from v352.41 back to 346.96. What video card are you using?

[Ertan Günay (ergunay)]

Hi psylem
The graphic card in my workstation is ATI FireGL V7200.
I don't get any error on 15.04 but on 15.10 I have this problem.

Thanks
Ertan

[Ertan Günay (ergunay)]

Another issue
On my system, if I press Ctrl+Alt+Backspace, I can't get back the screen.
But in dark mode (nothing on screen) if I press Ctrl+Alt+F1 than Ctrl+Alt+Del, I can reboot system.

[Ertan Günay (ergunay)]

My last temporary solution on that issue:
After locking screen,
When the screen goes to black
I press any key
Than the brightness of screen comes back
And never goes to black.

But
If I forget to press any key
Or after reboot if I cannot login on the time,
Screen goes to black and the solution is reboot the system.

[TJ (tj)]

Which display manager are these systems using?

I noticed this affects sddm (which is installed with KDE) but not with lightdm.

I've attached a debug log whilst using sddm that indicates the cause may be a NULL DBus path:

[init_session_id] gs-listener-dbus.c:2011 (12:28:15): Got session-id: /org/freedesktop/login1/session/_32
[init_session_id] gs-listener-dbus.c:2016 (12:28:15): Got sd-session-id: 2
[query_seat_path] gs-listener-dbus.c:2063 (12:28:15): org.freedesktop.DBus.Error.UnknownObject raised:
 No such object path '/org/freedesktop/DisplayManager/Session1'

[Theo Linkspfeifer (lastonestanding)]

Was this eventually fixed in 16.04 or 18.04?

[Ertan Günay (ergunay)]

Yes, that was connected to graphic drivers.
After new drivers for graphic cards, it disappeared.