[Bug 94626] Broadwell: OpenGL 3.1+ corruption
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Sat Mar 19 15:32:50 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=94626
Bug ID: 94626
Summary: Broadwell: OpenGL 3.1+ corruption
Product: Mesa
Version: 11.2
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: major
Priority: medium
Component: Drivers/DRI/i965
Assignee: idr at freedesktop.org
Reporter: florian at uekermann.me
QA Contact: intel-3d-bugs at lists.freedesktop.org
My Acer C740 renders severly corrupted frames in a deferred renderer (render to
texture and then from texture to screen). It looks like the red component is
increased for about half of the pixels. This happens only on OpenGL 3.1+
contexts and ES 3.1 contexts, both in 11.1 and 11.2-rc3.
glxgears stays black under the same conditions, when setting the OpenGL version
via environment variable.
I can provide test cases if someone gives me some pointers what you want to see
(screenshots, texture dumps, hello triangle, render to/from texture). I don't
really have an idea what kind of feature is likely to be the culprit.
Both test program work fine on (ES) 3.0.
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