Bug 58655

Summary:	Screen totally corrupted on CAYMAN, [drm : evergreen_vm_reg_valid] ERROR Invalid register 0x8040 in CS
Product:	DRI	Reporter:	Thomas Rohloff <v10lator>
Component:	DRM/Radeon	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:
Severity:	blocker
Priority:	medium	CC:	alexandre.f.demers, dcherkassov
Version:	DRI git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

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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