DebuggingCompiz

Revision 23 as of 2009-11-29 19:05:50

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Debugging Central

This page is part of the debugging series — pages with debugging details for a variety of Ubuntu packages.

How to diagnose

First check if the problem is in a Compiz dependency by upgrading your system to the latest version. Bugs in the video stack (kernel, X and mesa) may appear as Compiz problems.

Try different visual effects settings from the appearance preferences (System -> Preferences -> Appearance -> Visual Effects). If the problem still occurs with effects set to "None" then the problem is no in Compiz but one of the systems mentioned above.

If you have changed the default settings in "CompizConfig Settings Manager" (package name compizconfig-settings-manager) then try resetting these to the defaults by launching it from from System -> Preferences and clicking on the "Preferences" button and then on the "Reset to defaults" button.

How to file

If you have confirmed the bug appears to be in compiz file it using the following command:

ubuntu-bug compiz

This ensures that all appropriate information about your system is automatically attached to the bug report.

Please attach screenshots showing the problem in detail.

Describe what occurred and what you expected should have occurred.

Indicate if the problem is repeatable and what steps cause it.

Indicate if there is a workaround to the problem.

Example:

FancySwitcher does not show all windows.

To reproduce:
1. Log in
2. Open three GEdit windows
3. Press meta-tab

What occurs:
Only 2 windows are shown in switcher (see attached screenshot with annotations)

What was expected:
All three GEdit windows would be shown in the switcher as occurs when using the standard switcher (alt-tab).

Advanced Debugging

Install the debugging symbol packages (see DebuggingProgramCrash for how to add the debug repository):

sudo apt-get install compiz-core-dbgsym, compiz-plugins-dbgsym compiz-fusion-plugins-main-dbgsym, compiz-fusion-plugins-extra-dbgsym compizconfig-backend-gconf-dbgsym libcompizconfig0-dbgsym compiz-gnome-dbgsym

Run compiz manually by disabling visual effects and running it from the command line:

compiz.real --replace --indirect-rendering ccp

You can then run this with a debugger.


CategoryBugSquad CategoryDebugging