Public bug reported:
I use Kubuntu 9.04 beta on an AMD64. lspci shows me the following line
for my graphics hardware:
01:05.0 VGA compatible controller: ATI Technologies Inc Radeon XPRESS
200M 5955 (PCIE)
There is no explicit video driver setting in /etc/X11/xorg.conf. I
think, radeon is used.
When desktop effects are enabled, the system often freezes, typically
when windows are opened. I can trigger these freezes quite reliably by
starting Quassel and opening the settings dialog. The system doesnât
respond to any keys anymore, not even to Ctrl + Alt + F1 (console
switch). However, the mouse pointer can still be moved. If I enable XAA
in /etc/X11/xorg.conf, the system not only freezes but the screen gets
completely black.
If you need further information, please ask.
** Affects: ubuntu
Importance: Undecided
Status: New
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Kubuntu freezes when desktop effects are enabled
https://bugs.launchpad.net/bugs/351990
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