Unity and Compiz do not start (SIGSEGV, Segmentation fault)

[Raffaele Carillo]

Binary package hint: unity

After logging in, Unity does not start, the panels do not appear, only appear the pointer, the background and the icons on the desktop. I believe this is a bug in Unity, as with the classic desktop Compiz works perfectly. The same is true even if, from the classic desktop, manually activate the plugin Unity. Window borders disappear as well as the upper panel, but Unity does not start. If you need to add something to report this bug, you ask. Sorry for my English which is not my first language.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.2.2-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
Uname: Linux 2.6.37-7-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
CompizPlugins: [shift,wobbly]
Date: Mon Dec 6 18:35:37 2010
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV34 [GeForce FX 5200] [10de:0322] (rev a1) (prog-if 00 [VGA controller])
ProcEnviron:
 LANG=it_IT.utf8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-7-generic root=UUID=b2ff8007-b6a1-479c-b6cc-08d2be4fcaf7 ro quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
ProcVersionSignature_: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
RelatedPackageVersions:
 xserver-xorg 1:7.5+6ubuntu3b1
 libgl1-mesa-glx 7.9+repack-1ubuntu3
 libdrm2 2.4.22-2ubuntu1
 xserver-xorg-video-intel 2:2.13.901-2ubuntu1
 xserver-xorg-video-ati 1:6.13.2-1ubuntu2
SourcePackage: unity
dmi.bios.date: 12/11/2002
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: SiS-651
dmi.chassis.type: 3
dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/11/2002:svnTDItaliaSpa:pn:pvr:rvn:rnSiS-651:rvr:cvn:ct3:cvr:
dmi.sys.vendor: TDItaliaSpa
glxinfo: Error: [Errno 2] Nessun file o directory
system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-7-generic

[Didier Roche-Tolomelli (didrocks)]

No worry about your english, it's perfectly fine :)

Ok, so let's try to debug this.
First thing, we need to know if compiz segfault or not in your unity session. Can you please, open a session (so, without any decoration), then switch to vt1 and run:
$ export DISPLAY=:0
$ export COMPIZ_CONFIG_PROFILE=ubuntu
$ compiz --replace 2>&1 | tee compizlog

Then, you should have a compizlog file in your home directory, can you attach it here please?

[Raffaele Carillo (raffaelecarillo)]

Ok, here is the log of Compiz.

[Didier Roche-Tolomelli (didrocks)]

Ok, so all seems to start, that's already a first step :)
And when you start like that, manually, once done, you don't see compiz and unity on vt7?
You don't have any segfault then, if you switch back to vt1, the process is still hanging and running, isn't it?

[Raffaele Carillo (raffaelecarillo)]

No, I do not see compiz and unity in vt7.
If I go back to VT1, the command "compiz --replace....." does not stay running, in the sense that the terminal returns to waiting for a new command as you can see in attachment "compizlog2".

[Didier Roche-Tolomelli (didrocks)]

waow, we don't see a segfault or whatever, it shouldn't return.

What's the result of "echo $?" (just after launching compiz in vt1)

[Raffaele Carillo (raffaelecarillo)]

It's "0"

[Raffaele Carillo (raffaelecarillo)]

Did you mean "echo $?" or "echo $" ?

The result of "echo $?" is "0".

The result of "echo $" is "$".

[Didier Roche-Tolomelli (didrocks)]

hum, I don't see how it can exit with 0… So yeah, no crash, Sam do you have a slight idea of what happens in compiz? (maybe unity sysexit?)

[Sam Spilsbury (smspillaz)]

Hey Raffaele,

Looks like we are doing a normal exit on an abnormal condition. Could you install compiz-dbgsym as stated in https://wiki.ubuntu.com/DebuggingProgramCrash and then drop to a VT and do something like:

DISPLAY=:0 gdb compiz
break exit
run --replace ccp
bt
bt full
quit

DISPLAY=:0 metacity --replace &

This will tell us if some stupid plugin is calling exit () when it shouldn't be or if there is a problem in the mainloop. Cheers.

[Sam Spilsbury (smspillaz)]

Oh, I forgot to mention, could you let us know of the output? Specifically if "bt" tells you "No stack" or if it actually spews out a bunch of code, in which case could you post the output here ?

[Raffaele Carillo (raffaelecarillo)]

Did you mean compiz-core-dbgsym?

[Raffaele Carillo (raffaelecarillo)]

Ok, I run the commands you gave me. I think it's a plugin because after you run " run --replace cpp " the output is " /usr/bin/compiz (core) - Error: Couldn't load plugin 'cpp' " and then I pressed CTRL + C and I then ran the rest of the commands. The output is in attachment "Output0".
I installed the packages compiz-fusion-plugins-main-dbgsym, compiz-core-dbgsym, compiz-gnome-dbgsym, compiz-plugins-dbgsym, compizconfig-backend-gconf-dbgsym because the package "compiz-dbgsym" is not in repository.

[Sam Spilsbury (smspillaz)]

On Tue, Dec 7, 2010 at 10:52 PM, Raffaele Carillo
<email address hidden> wrote:
> Ok, I run the commands you gave me. I think it's a plugin because after you run " run --replace cpp " the output is "   /usr/bin/compiz (core) - Error: Couldn't load plugin 'cpp'   " and then I pressed CTRL + C and I then ran the rest of the commands. The output is in attachment "Output0".
> I installed the packages compiz-fusion-plugins-main-dbgsym, compiz-core-dbgsym, compiz-gnome-dbgsym, compiz-plugins-dbgsym, compizconfig-backend-gconf-dbgsym because the package "compiz-dbgsym" is not in repository.
>
> ** Attachment added: "Output0"
>   https://bugs.launchpad.net/ubuntu/+source/unity/+bug/686094/+attachment/1758599/+files/Output0

Oops. sorry I mean "compiz --replace ccp". Always muddling the two up ;-)

>
> --
> You received this bug notification because you are a member of Unity
> Team, which is subscribed to unity in ubuntu.
> https://bugs.launchpad.net/bugs/686094
>
> Title:
>  Unity and Compiz do not start
>
> Status in “unity” package in Ubuntu:
>  Incomplete
>
> Bug description:
>  Binary package hint: unity
>
> After logging in, Unity does not start, the panels do not appear, only appear the pointer, the background and the icons on the desktop. I believe this is a bug in Unity, as with the classic desktop Compiz works perfectly. The same is true even if, from the classic desktop, manually activate the plugin Unity. Window borders disappear as well as the upper panel, but Unity does not start. If you need to add something to report this bug, you ask. Sorry for my English which is not my first language.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.2.2-0ubuntu2
> ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> Uname: Linux 2.6.37-7-generic i686
> NonfreeKernelModules: nvidia
> Architecture: i386
> CompizPlugins: [shift,wobbly]
> Date: Mon Dec  6 18:35:37 2010
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV34 [GeForce FX 5200] [10de:0322] (rev a1) (prog-if 00 [VGA controller])
> ProcEnviron:
>  LANG=it_IT.utf8
>  SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-7-generic root=UUID=b2ff8007-b6a1-479c-b6cc-08d2be4fcaf7 ro quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
> ProcVersionSignature_: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> RelatedPackageVersions:
>  xserver-xorg 1:7.5+6ubuntu3b1
>  libgl1-mesa-glx 7.9+repack-1ubuntu3
>  libdrm2 2.4.22-2ubuntu1
>  xserver-xorg-video-intel 2:2.13.901-2ubuntu1
>  xserver-xorg-video-ati 1:6.13.2-1ubuntu2
> SourcePackage: unity
> dmi.bios.date: 12/11/2002
> dmi.bios.vendor: Phoenix Technologies, LTD
> dmi.bios.version: 6.00 PG
> dmi.board.name: SiS-651
> dmi.chassis.type: 3
> dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/11/2002:svnTDItaliaSpa:pn:pvr:rvn:rnSiS-651:rvr:cvn:ct3:cvr:
> dmi.sys.vendor: TDItaliaSpa
> glxinfo: Error: [Errno 2] Nessun file o directory
> system: distro = Ubuntu, architecture = i686, kernel = 2.6....

[Raffaele Carillo (raffaelecarillo)]

The command is not fixed yet. xD

[Sam Spilsbury (smspillaz)]

On Wed, Dec 8, 2010 at 12:03 AM, Raffaele Carillo
<email address hidden> wrote:
> The command is not fixed yet. xD
>

Run that one through gdb, eg

DISPLAY=:0 gdb compiz
run --replace ccp
break exit
bt
bt full
quit

And post all the output

> --
> You received this bug notification because you are a member of Unity
> Team, which is subscribed to unity in ubuntu.
> https://bugs.launchpad.net/bugs/686094
>
> Title:
>  Unity and Compiz do not start
>
> Status in “unity” package in Ubuntu:
>  Incomplete
>
> Bug description:
>  Binary package hint: unity
>
> After logging in, Unity does not start, the panels do not appear, only appear the pointer, the background and the icons on the desktop. I believe this is a bug in Unity, as with the classic desktop Compiz works perfectly. The same is true even if, from the classic desktop, manually activate the plugin Unity. Window borders disappear as well as the upper panel, but Unity does not start. If you need to add something to report this bug, you ask. Sorry for my English which is not my first language.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.2.2-0ubuntu2
> ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> Uname: Linux 2.6.37-7-generic i686
> NonfreeKernelModules: nvidia
> Architecture: i386
> CompizPlugins: [shift,wobbly]
> Date: Mon Dec  6 18:35:37 2010
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV34 [GeForce FX 5200] [10de:0322] (rev a1) (prog-if 00 [VGA controller])
> ProcEnviron:
>  LANG=it_IT.utf8
>  SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-7-generic root=UUID=b2ff8007-b6a1-479c-b6cc-08d2be4fcaf7 ro quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
> ProcVersionSignature_: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> RelatedPackageVersions:
>  xserver-xorg 1:7.5+6ubuntu3b1
>  libgl1-mesa-glx 7.9+repack-1ubuntu3
>  libdrm2 2.4.22-2ubuntu1
>  xserver-xorg-video-intel 2:2.13.901-2ubuntu1
>  xserver-xorg-video-ati 1:6.13.2-1ubuntu2
> SourcePackage: unity
> dmi.bios.date: 12/11/2002
> dmi.bios.vendor: Phoenix Technologies, LTD
> dmi.bios.version: 6.00 PG
> dmi.board.name: SiS-651
> dmi.chassis.type: 3
> dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/11/2002:svnTDItaliaSpa:pn:pvr:rvn:rnSiS-651:rvr:cvn:ct3:cvr:
> dmi.sys.vendor: TDItaliaSpa
> glxinfo: Error: [Errno 2] Nessun file o directory
> system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-7-generic
>
>
>
>
>

--
Sam Spilsbury

[Raffaele Carillo (raffaelecarillo)]

The output is the same that is in attachment "Output0" .

[Sam Spilsbury (smspillaz)]

On Wed, Dec 8, 2010 at 1:50 AM, Raffaele Carillo
<email address hidden> wrote:
> The output is the same that is in attachment "Output0" .
>

Hm. Why are you doing ^C ? You need to wait for "program exited normally".

Also make sure that you are typing "ccp" and not "cpp". There is a difference.

> --
> You received this bug notification because you are a member of Unity
> Team, which is subscribed to unity in ubuntu.
> https://bugs.launchpad.net/bugs/686094
>
> Title:
>  Unity and Compiz do not start
>
> Status in “unity” package in Ubuntu:
>  Incomplete
>
> Bug description:
>  Binary package hint: unity
>
> After logging in, Unity does not start, the panels do not appear, only appear the pointer, the background and the icons on the desktop. I believe this is a bug in Unity, as with the classic desktop Compiz works perfectly. The same is true even if, from the classic desktop, manually activate the plugin Unity. Window borders disappear as well as the upper panel, but Unity does not start. If you need to add something to report this bug, you ask. Sorry for my English which is not my first language.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.2.2-0ubuntu2
> ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> Uname: Linux 2.6.37-7-generic i686
> NonfreeKernelModules: nvidia
> Architecture: i386
> CompizPlugins: [shift,wobbly]
> Date: Mon Dec  6 18:35:37 2010
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV34 [GeForce FX 5200] [10de:0322] (rev a1) (prog-if 00 [VGA controller])
> ProcEnviron:
>  LANG=it_IT.utf8
>  SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-7-generic root=UUID=b2ff8007-b6a1-479c-b6cc-08d2be4fcaf7 ro quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
> ProcVersionSignature_: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> RelatedPackageVersions:
>  xserver-xorg 1:7.5+6ubuntu3b1
>  libgl1-mesa-glx 7.9+repack-1ubuntu3
>  libdrm2 2.4.22-2ubuntu1
>  xserver-xorg-video-intel 2:2.13.901-2ubuntu1
>  xserver-xorg-video-ati 1:6.13.2-1ubuntu2
> SourcePackage: unity
> dmi.bios.date: 12/11/2002
> dmi.bios.vendor: Phoenix Technologies, LTD
> dmi.bios.version: 6.00 PG
> dmi.board.name: SiS-651
> dmi.chassis.type: 3
> dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/11/2002:svnTDItaliaSpa:pn:pvr:rvn:rnSiS-651:rvr:cvn:ct3:cvr:
> dmi.sys.vendor: TDItaliaSpa
> glxinfo: Error: [Errno 2] Nessun file o directory
> system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-7-generic
>
>
>
>
>

--
Sam Spilsbury

[Raffaele Carillo (raffaelecarillo)]

Ok, in attachment "Output1" I run other commands to load the profile of Unity.

[Raffaele Carillo (raffaelecarillo)]

It looks like a segmentation fault that is causing the crash of Unity. More or less I know what that means, but is caused by what? From a programming error, an error caused by other plugins or what?

[Sam Spilsbury (smspillaz)]

On Fri, Dec 10, 2010 at 12:48 AM, Raffaele Carillo
<email address hidden> wrote:
> It looks like a segmentation fault that is causing the crash of Unity.
> More or less I know what that means, but is caused by what? From a
> programming error, an error caused by other plugins or what?
>

Do you get the same output every time? in this case it is a bug in nux.

> --
> You received this bug notification because you are a member of Unity
> Team, which is subscribed to unity in ubuntu.
> https://bugs.launchpad.net/bugs/686094
>
> Title:
>  Unity and Compiz do not start
>
> Status in “unity” package in Ubuntu:
>  Incomplete
>
> Bug description:
>  Binary package hint: unity
>
> After logging in, Unity does not start, the panels do not appear, only appear the pointer, the background and the icons on the desktop. I believe this is a bug in Unity, as with the classic desktop Compiz works perfectly. The same is true even if, from the classic desktop, manually activate the plugin Unity. Window borders disappear as well as the upper panel, but Unity does not start. If you need to add something to report this bug, you ask. Sorry for my English which is not my first language.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.04
> Package: unity 3.2.2-0ubuntu2
> ProcVersionSignature: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> Uname: Linux 2.6.37-7-generic i686
> NonfreeKernelModules: nvidia
> Architecture: i386
> CompizPlugins: [shift,wobbly]
> Date: Mon Dec  6 18:35:37 2010
> InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> InstallationMedia_: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
> PciDisplay: 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV34 [GeForce FX 5200] [10de:0322] (rev a1) (prog-if 00 [VGA controller])
> ProcEnviron:
>  LANG=it_IT.utf8
>  SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.37-7-generic root=UUID=b2ff8007-b6a1-479c-b6cc-08d2be4fcaf7 ro quiet splash nomodeset video=uvesafb:mode_option=1024x768-24,mtrr=3,scroll=ywrap
> ProcVersionSignature_: Ubuntu 2.6.37-7.19-generic 2.6.37-rc3
> RelatedPackageVersions:
>  xserver-xorg 1:7.5+6ubuntu3b1
>  libgl1-mesa-glx 7.9+repack-1ubuntu3
>  libdrm2 2.4.22-2ubuntu1
>  xserver-xorg-video-intel 2:2.13.901-2ubuntu1
>  xserver-xorg-video-ati 1:6.13.2-1ubuntu2
> SourcePackage: unity
> dmi.bios.date: 12/11/2002
> dmi.bios.vendor: Phoenix Technologies, LTD
> dmi.bios.version: 6.00 PG
> dmi.board.name: SiS-651
> dmi.chassis.type: 3
> dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd12/11/2002:svnTDItaliaSpa:pn:pvr:rvn:rnSiS-651:rvr:cvn:ct3:cvr:
> dmi.sys.vendor: TDItaliaSpa
> glxinfo: Error: [Errno 2] Nessun file o directory
> system: distro = Ubuntu, architecture = i686, kernel = 2.6.37-7-generic
>
>
>
>
>

--
Sam Spilsbury

[Raffaele Carillo (raffaelecarillo)]

Yes

[Raffaele Carillo (raffaelecarillo)]

Can I put this bug from those of nux and give it a level of importance and status?

[Raffaele Carillo (raffaelecarillo)]

Sam can change the title to something more technical indication that this bug relates to a segmentation fault? Then if you can give the bug the importance and status.

[Raffaele Carillo (raffaelecarillo)]

Despite the latest updates to Nux and Unity, the bug persists. But now that we know what the bug is caused, what should be done?

[Raffaele Carillo (raffaelecarillo)]

Despite the latest updates to Nux, Unity and Compiz, the bug persists again. But to update I had to remove the debugging symbols of Compiz, Nux and Unity.

[Raffaele Carillo (raffaelecarillo)]

Nobody follows this bug?

[madbiologist (me-again)]

Is this still occurring in Ubuntu 11.04 "Natty Narwhal" alpha 2?

[Raffaele Carillo (raffaelecarillo)]

yes

[Jay Taoko (jaytaoko)]

This is happening on a Geforce FX 5200. I suspect this GPU may not have the support needed for Unity.
Can you run this command:
           /usr/lib/nux/unity_support_test -p

Please, report the output of the command.

[Raffaele Carillo (raffaelecarillo)]

I think Unity is not supported by the fx 5200. The bug is closed. My luck is that I bought a new computer with a Nvidia GTX 560. :)

[Jay Taoko (jaytaoko)]

@Raffaele

Sorry, that you couldn't get Unity to run on your fx 5200. But you will have a great time with your Geforce GTX 560. Enjoy!

[Raffaele Carillo (raffaelecarillo)]

Thank you! ;)

[Joachim R. (jro)]

Same problem with Nvidia GTX 260.
unity_support_test told me Unity is supported
Attached : result of compiz --replace 2>&1 | tee compiz.og
(the compiz --replace alone exits with code 139)

Note : if not redirecting stderr output, I get a lot of GLib warnings and critical messages on vt1
GLib-GObject-WARING **: invalid cast from 'BamfWindow' to 'BamfApplication'
CRITICAL **: bamf_application_get_desktop_file: assertion 'BAMF_IS_APPLICATION (application)' failed
both lines many times

[Joachim R. (jro)]

After an ultimate tryout (launching a simple compiz --replace in vt1), I finally got Unity running on vt7. But I have no window decorations !

[Pavlo Bohmat (bohm)]

Same problem with Nvidia GF6600
For Ubunty 11.04 need "compiz --replace" to add in the ~/.config/autostart/compiz.desktop

[Daniel Johansson (danjo133)]

I have this bug as well, 11.04 64bit, upgraded from ~9.04 -> {9.10, 10.4, 10.10} -> 11.04, Nvidia GTX580.

With Nvidia drivers 270.41.06 (default shipped)

I will try compiz --replace when I get home

[Daniel Johansson (danjo133)]

compiz --replace didn't work, neither in a gnome-terminal nor in a vt (with DISPLAY=:0)

Sometimes when executing unity (which in turn pokes compiz) though, I get a segfault (attached)

===============
daniel@cake:~$ /usr/lib/nux/unity_support_test -p
OpenGL vendor string: NVIDIA Corporation
OpenGL renderer string: GeForce GTX 580/PCI/SSE2
OpenGL version string: 4.1.0 NVIDIA 270.41.06

Not software rendered: yes
Not blacklisted: yes
GLX fbconfig: yes
GLX texture from pixmap: yes
GL npot or rect textures: yes
GL vertex program: yes
GL fragment program: yes
GL vertex buffer object: yes
GL framebuffer object: yes
GL version is 1.4+: yes

Unity supported: yes

=============

So, I have a desktop with icons and a background, I can start applications which gets window decorations, but no panels (neither top nor left)

[Omer Akram (om26er)]

This bug report is specifically for Gefore 5200FX not working with Unity. its not Unity fault its just the hardware is not capable enough to run unity.