Bug#533444: Bug#524558: Occasional X hangs where drmCommandWrite() never returns

Sat Jul 11 05:04:16 PDT 2009

On Fri, 2009-07-10 at 23:05 +0200, Fabian Köster wrote:
> 
> I have a similar problem using Ubuntu Jaunty with the radeon-driver.
> 
> See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/348332

Backtraces aren't useful for classifying GPU lockup problems because
they just show one of a few places where the drivers wait for the GPU to
catch up, which never happens because it's locked up. This is usually
unrelated to the place where the commands causing the GPU to lock up
were generated though. So this kind of problem needs to be classified by
what triggers it instead.

That said, a few people above mention that kernel 2.6.29 or newer solved
their problem. Have you tried that?

-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer