[Bug 55006] video playback causes total freeze on RV350

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=55006

--- Comment #5 from Alex Deucher <agd5f at yahoo.com> 2012-09-18 17:10:24 UTC ---
(In reply to comment #4)
> Firmware linux-free & non-free are installed.
> 
> I tested Linux 3.2 again, this time with radeon.agpmode=-1. It seems to work
> for me. I put the machine under heavy load and played several vids at the same
> time: no freeze so far.
> 
> So what do you guess the problem is? And in case you solve the bug, could you
> backport it to Linux 3.2 too?

AGP seems to be unstable on your system.  Setting radeon.agpmode=-1 should work
on older kernels as well.  You might also try setting other values for agpmode.
 Try values 1, 2, 4, or 8 and see if any work for you and if so we can add a
quirk for your system.

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