As soon as I try to run a 3D-app as Neverball or Google Earth with the radeon-driver my whole system totally hangs; my machine becomes irresponsive to keystrokes (even to ctrl-atl-del) although the mouse can still be moved; nonetheless all running apps do not respond to mouse events any more; turning the power off is the only way out.
Do you use kernel modesetting? If so, have a look at bug #24218
How can I determine whether my kernel uses modesetting?
Please specify what GPU you are using and attach your xorg log and config.
Created attachment 30355 [details] xorg-ati.conf
> lspci|gi VGA 01:00.0 VGA compatible controller: ATI Technologies Inc M76XT [Mobility Radeon HD 2600 XT]
Is there any way to disable kernel modesetting by a kernel parameter?
Add radeon.modeset=0 to kernel cmdline
Created attachment 30403 [details] Xorg.2.log of X hanging on 3D-app inv.
Created attachment 30404 [details] [review] Xorg.3.log: no hangs with radeon.modeset=0 On usage of the radeon.modeset=0 kernel parameter things in deed work fine. The only drawback is that thereby Bug 24440 occurs again (integrated screen unusable).
Is this still an issue with a newer kernel, ddx or mesa version?
Is this still an issue?
This has been resolved by the radeon display driver distributed with openSUSE 12.3 RC1, kernel 3.7.6-1.2-desktop. 3D apps do start and work now however with a somehow significantly lower performance than the OEM drivers; but good work having got all of it to at least work;: tested neverball and etracer.
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