Summary: | Black screen in OpenGL app with dual head in extend mode | ||
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Product: | Mesa | Reporter: | Victor NOEL <victor.noel> |
Component: | Drivers/DRI/i915 | Assignee: | Ian Romanick <idr> |
Status: | RESOLVED FIXED | QA Contact: | |
Severity: | normal | ||
Priority: | medium | ||
Version: | unspecified | ||
Hardware: | Other | ||
OS: | All | ||
Whiteboard: | |||
i915 platform: | i915 features: | ||
Attachments: | xorg logs |
Description
Victor NOEL
2009-06-26 06:44:00 UTC
this should be related to the getbuffers stuff. err, I was thinking of a different bug. I'll leave assignment, though. This sounds exactly like: commit a48edfad8ab95c331d768ba30a16ea51faec05da Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Sat Jun 5 09:33:58 2010 +0100 i915: Fix off-by-one for drawing rectangle. The drawing rectangle is given in *inclusive* pixel values, so the range is only [0,2047]. Hence when rendering to a 2048 wide target, such as an extended desktop, we would issue an illegal instruction zeroing the draw area. Fixes: Bug 27408: Primary and Secondary display blanks in extended desktop mode with Compiz enabled https://bugs.freedesktop.org/show_bug.cgi?id=27408 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit add3260157368458501709d08a3f913ed448234f) Reviewed-by: Eric Anholt <eric@anholt.net> in release 7.8.2 |
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