I removed xserver-xgl package (which is what I assume you meant) and at
that seems to fix the problem. Window refresh works fine and glxgears
does not crash and is nice and smooth as expected. I can also turn on
"Extra Visual Effects" in Appearance Preferences without the screen
going crazy which
Please note, I have more or less the same graphics setup (Dell Optiplex
520 with and identical problems. Since upgrading from Feisty to Gutsy I
notice that window redraws were happening very slowly. Following all
the above instructions leads to similar results with one exception:
glxgears crashes
Sorry that should have been (Dell Optiplex 520 with Intel 82945G/GZ
integrated controller and using the i810 driver).
--
glxinfo: 'Direct rendering: no' on 915GM video chipset on Gutsy
https://bugs.launchpad.net/bugs/154104
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