[Bug 63599] [r600] SUMO2 GPU lockup CP stall (kernel 3.2.47, 3.4, 3.8, 3.9, 3.10)

https://bugs.freedesktop.org/show_bug.cgi?id=63599

--- Comment #32 from Paul Wolneykien wolneykien@gmail.com --- (In reply to comment #31)

(In reply to comment #30)

...

I've set each register values from fglrx-console.data and call xinit. Lockup again, nothing changes.

Does the patch in comment 29 fix the issue for you? That patch is upstream now and should be in most stable kernels as well.

To the pity, no. I've tested Linux 3.12 with the patch already applied and it changes nothing. My chip is:

$ lspci | grep 'VGA' 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Sumo [Radeon HD 6480G]

Is it really a SUMO2 chip or I should open a new bug?