Testing major GEM memory leak

Recently in Lucid, a major memory leak was introduced into the X.org server which causes the computer to get slower and slower over time. This is reported as bug 565981. This does not affect cards using proprietary drivers or not using DRI2. Intel will always be affected since DRI2 is used with and without KMS, ATI uses DRI1 without KMS.

One possible solution is to roll back the GLX 1.4 enablement patches, and the patch which caused the memory leak to appear.

Installing the test packages

Please do the following to upgrade to the proposed X server with the fix:

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

After that, reboot and log in.

Testing

Please work with your system normally for a few hours with compiz enabled (at which point the current lucid X.org server should feel really sluggish), as well as check functionaly and performance of:

• Video playback (fullscreen and windowed)
• Games (extremetuxracer, sauerbraten, etc.)
• compiz (quickly change desktops and move windows around)
• Flash movies
• etc.

Please verify that glxinfo | grep "GLX version" says "1.2", not "1.4".

Reverting back to lucid packages

sudo apt-get install ppa-purge
sudo ppa-purge ppa:ubuntu-x-swat/x-updates

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