| Summary: |
Stencil-buffer usage causes rendering to front-buffer under compiz with UXA/DRI2 |
| Product: |
xorg
|
Reporter: |
Mirco Müller <macslow> |
| Component: |
Driver/intel | Assignee: |
Gordon Jin <gordon.jin> |
| Status: |
RESOLVED
DUPLICATE
|
QA Contact: |
Xorg Project Team <xorg-team> |
| Severity: |
normal
|
|
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| Priority: |
medium
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| Version: |
7.4 (2008.09) | |
|
| Hardware: |
x86 (IA32) | |
|
| OS: |
Linux (All) | |
|
| Whiteboard: |
|
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i915 platform:
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i915 features:
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|---|
| Attachments: |
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Created attachment 26241 [details] isolated, self-contained test-case triggering the stencil-buffer bug Using a special stencil-buffer based technique for drawing concave polygons (e.g. font-glyphs), as also described in the OpenGL red book, causes the client to directly draw to the front-buffer, ignoring the composited enviroment (being run under compiz). Tested with kernels are 2.6.28 and 2.6.30 under Ubuntu 9.04 and Ubuntu Karmic Koala. Tested on GPUs intel GMA 945 and GMA 965 with the the xorg driver 2.7.99.1 and mesa dri "Mesa DRI Intel(R) 945GME GEM 20090326 2009Q1 RC2 x86/MMX/SSE2". An isolated and self-contained example is attached in a tarball.