[Bug 55006] video playback causes total freeze on RV350

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

--- Comment #5 from Alex Deucher agd5f@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.