compiz hangs X server on startup

[sandic]

i am on intrepid latest with proposed updates enabled. Compiz hangs X server everytime I run it, i am forced to hard reboot the system. OTOH metacity's compositing manager works fine.

my VGA controller is Intel Corporation 82845G/GL[Brookdale-G]/GE/PE DRAM Controller/Host-Hub Interface (rev 03)

[jerryb (gerald-britton)]

Same thing here with an 810 chip. Startup messages:

$ compiz --replace
Checking for Xgl: not present.
Detected PCI ID for VGA:
Checking for texture_from_pixmap: not present.
Trying again with indirect rendering:
Checking for texture_from_pixmap: present.
Checking for non power of two support: present.
Checking for Composite extension: present.
Comparing resolution (1024x768) to maximum 3D texture size (2048): Passed.
Checking for Software Rasterizer: Not present.
Checking for nVidia: not present.
Checking for FBConfig: present.
Checking for Xgl: not present.

that's all she wrote. At this point, I have to reboot.

[Michele Mangili (mangilimic)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. Could you please add your ~/.xsession-errors, /var/log/Xorg.0.log and the output of lspci -vvnn to your bug report as separate attachments? For other debugging instructions please have a look to https://wiki.ubuntu.com/DebuggingCompiz.Thanks in advance.

[jerryb (gerald-britton)]

I attached the files requested

[jerryb (gerald-britton)]

resetting to new since requested files have been supplied

[Michele Mangili (mangilimic)]

Thanks for reporting this bug and any supporting documentation. Since this bug has enough information provided for a developer to begin work, I'm going to mark it as confirmed and let them handle it from here. Thanks for taking the time to make Ubuntu better!

[jerryb (gerald-britton)]

glad to help! I sure want to see this bug squashed!q

On Thu, Jan 29, 2009 at 10:22 AM, Michele Mangili <email address hidden> wrote:
> Thanks for reporting this bug and any supporting documentation. Since
> this bug has enough information provided for a developer to begin work,
> I'm going to mark it as confirmed and let them handle it from here.
> Thanks for taking the time to make Ubuntu better!
>
> ** Changed in: compiz (Ubuntu)
> Status: New => Confirmed
>
> --
> compiz hangs X server on startup
> https://bugs.launchpad.net/bugs/276237
> You received this bug notification because you are a direct subscriber
> of the bug.
>

[Alexander Jones (alex-weej)]

This is affecting Jaunty as of today.

[Robert Ancell (robert-ancell)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue for you. Can you try with the latest Ubuntu release? Thanks in advance.

[jerryb (gerald-britton)]

Yes, this is still an issue. There has not been any activity in this report because I stopped using compiz and because apparently no one has worked on it since it was marked confirmed at the end of January.

[Erkin Bahceci (cornelius1)]

Thanks for reporting the issue. When the hang happens, if you are able to ssh into the computer from another machine or if you can switch to a TTY with Control-Alt-F1, you could help us find the cause. ssh might be more helpful than the TTY route though.

After starting compiz, waiting until it hangs X, and sshing in or switching to a TTY, what does the "top" command show you? Is compiz using a lot of CPU? If so, a compiz backtrace (while it is running) would be really helpful.

To get a backtrace, first have a look at this page to add the repository for debug packages:
https://wiki.ubuntu.com/DebuggingProgramCrash

After adding the repository mentioned there, in synaptic hit "reload" and search for "compiz". When you see the results, for each already installed package there, install the corresponding -dbgsym package if there is one.

Here, I have a script to get a compiz backtrace:
http://erkinbah.googlepages.com/gdb-compiz-backtrace.sh

After downloading the script, starting compiz, waiting until it hangs X, and sshing in or switching to TTY, you can run the script as follows:
bash gdb-compiz-backtrace.sh

The script should write the name of the backtrace file it dumps.

Thanks.

[Travis Watkins (amaranth)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 259385, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.