vgaswitcheroo doesn't deal with powered off dGPU on resume
Submitted by Austin Lund
Assigned to Default DRI bug account
Created attachment 79884
dmesg output when trying to switch back to radeon gpu.
I have two GPUs in my system:
01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Whistler [Radeon HD 6600M/6700M/7600M Series]
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
This is a macbookpro8,2 and hence the gmuxer is controlled by the apple-gmux driver.
If I suspend the system to ram whilst on the integrated gpu (i.e. the intel gpu), then after resume switch back to the radeon, I get a GPU hang.
I've attached the dmesg output that I get when I try this.
I'm using linux 3.10-rc3. I don't have X running when doing this (vgaswitcheroo won't allow this).
Attachment 79884, "dmesg output when trying to switch back to radeon gpu.":