Bug 58655 - Screen totally corrupted on CAYMAN, [drm : evergreen_vm_reg_valid] *ERROR* Invalid register 0x8040 in CS
Summary: Screen totally corrupted on CAYMAN, [drm : evergreen_vm_reg_valid] *ERROR* In...
Status: RESOLVED FIXED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/Radeon (show other bugs)
Version: DRI git
Hardware: Other All
: medium blocker
Assignee: Default DRI bug account
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Keywords:
: 58656 58724 (view as bug list)
Depends on:
Blocks:
 
Reported: 2012-12-22 18:20 UTC by Thomas Rohloff
Modified: 2012-12-24 19:28 UTC (History)
2 users (show)

See Also:
i915 platform:
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Attachments

Description Thomas Rohloff 2012-12-22 18:20:34 UTC 
This is caused by this mesa commit: http://cgit.freedesktop.org/mesa/mesa/commit/?id=24b1206ab2dcd506aaac3ef656aebc8bc20cd27a and kernel 3.8-rc1.

I would love if this could be fixed fast as I have another, more important bug that I need to test against newest mesa git, which isn't possible as I can't go above the commit.
Comment 1 Alexandre Demers 2012-12-22 19:40:33 UTC 
*** Bug 58656 has been marked as a duplicate of this bug. ***
Comment 2 Alex Deucher 2012-12-22 19:42:14 UTC 
Mesa hadn't previously emitted that register for cayman so the kernel wasn't expecting it.  Fixed with this patch:
http://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-3.8&id=668bbc81baf0f34df832d8aca5c7d5e19a493c68
Which should show up in 3.8 and stable soon.
Comment 3 Thomas Rohloff 2012-12-22 20:01:00 UTC 
Thanks, that small patch fixes it. :)
Comment 4 Alex Deucher 2012-12-24 19:28:31 UTC 
*** Bug 58724 has been marked as a duplicate of this bug. ***

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