There is a discusion on Rad3D regarding this problem, which people like
myself encounter. Basicly the description is the following:
After scrolling, browsing or some other actions or trying to launch 3D
applications, the system completely locks up, however:
1. Mouse is moveable but not responding to any action
2. Keyboard does not respond at all
3. Some programmes still works, like sound applications
4. SSH-able
5. Killing X makes the system completely freeze
It happens if 3D is enabled in XF86Config (Load DRI).
There is thread on Rage3D
http://www.rage3d.com/board/showthread.php?t=33800697 which the description
of the problem and another one
http://www.rage3d.com/board/showthread.php?t=33811518, where you can leave
your status.
Basically we are trying to figure out how common this problem is among ATI
users, however, some NVidia users report this problem as well.
So far the following cards have been reported to have this lock up:
1. Radeon 9500Pro/9700Pro
2. Radeon 9000 Mobility
3. Radeon 9200SE
4. Radeon 8500
5. Saphire X800-XT/PE
6. Radeon 9550
If you do not have this problem, could you give a brief description of your
graphic card including a manufacturer and also some description of your
system configuration (motherboard, chip, CPU). Your help will be highly
appreciated. You can do it here or on Rage3D.
For me this bug is very annoying because it is the main reason I cannot
completely abandon Windows.