https://bugs.freedesktop.org/show_bug.cgi?id=62012
Priority: medium Bug ID: 62012 Assignee: dri-devel@lists.freedesktop.org Summary: Intermittent black geometry Severity: major Classification: Unclassified OS: All Reporter: michel@daenzer.net Hardware: Other Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
Some apps intermittently show black instead of the expected coloration for some parts of the geometry.
Investigating this with the rss-glx hack atunnel, the depth buffer appears to have the correct values for the affected areas. So apparently the pixel shader either doesn't run or fails to produce the correct colour values there for some reason.
https://bugs.freedesktop.org/show_bug.cgi?id=62012
Michel Dänzer michel@daenzer.net changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED
--- Comment #1 from Michel Dänzer michel@daenzer.net --- commit c446baa0be1ed2a3bf157519f89a65d348aad17c Author: Michel Danzer michel.daenzer@amd.com Date: Fri Mar 22 14:09:10 2013 +0000
R600: Use legacy (0 * anything = 0) MUL instructions for pow intrinsics
Fixes wrong lighting in some corner cases with r600g and radeonsi, e.g. manifested by failure of two piglit/glean tests and intermittent black patches in many apps.
Tested on SI and RS880.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=62012 [radeonsi] Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=58150 [r600g]
NOTE: This is a candidate for the Mesa stable branch.
Reviewed-by: Christian König christian.koenig@amd.com
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177730 91177308-0d34-0410-b5e6-96231b3b80d8
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