[Bug 71051] Cannot suspend with radeon drivers.

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=71051

--- Comment #9 from Hin-Tak Leung <htl10 at users.sourceforge.net> ---
(In reply to Alex Deucher from comment #8)
> Created attachment 150801 [details]
> possible fix for mullins
> 
> This patch may fix Hin-Tak's issue, but won't affect the original reporter.

Yes, it does fix my suspend problem. Thanks for the quick response. Please feel
free to add a 'Tested-By:'.


The screen stays blank after wake on hibernate though, with these messages:

Sep 19 04:42:48 localhost kernel: [drm:cik_ring_test] *ERROR* radeon: ring 1
test failed (scratch(0x3010C)=0xCAFEDEAD)
Sep 19 04:42:48 localhost kernel: [drm:radeon_dp_link_train_cr] *ERROR*
displayport link status failed
Sep 19 04:42:48 localhost kernel: [drm:radeon_dp_link_train_cr] *ERROR* clock
recovery failed
Sep 19 04:42:48 localhost kernel: [drm:radeon_dp_link_train_cr] *ERROR*
displayport link status failed
Sep 19 04:42:48 localhost kernel: [drm:radeon_dp_link_train_cr] *ERROR* clock
recovery failed

Somehow blindly suspending (by accident, pressing the power button for too
short a duration) aand waking brings it back, interestingly.

The corrupted mouse pointer also changed from the usual 'squashed + block' 
( photo attached to https://bugzilla.redhat.com/show_bug.cgi?id=1141491#c0)
to a phantom double pointer, which is extremely confusing now.

I'll attach the full dmesg of the 'wake from hibernate + suspend + wake from
suspend', and the double pointer picture below. And while I am at it, is there
any patches to get x-video I should try?

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