[Bug 104297] [i965] Downward causes GPU hangs and misrendering on Haswell

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Feb 16 12:01:48 UTC 2018


--- Comment #32 from vadym <vadym.shovkoplias at globallogic.com> ---
Hi Mark,

I'm not sure we can easily bisect bad commit. When OpenGL version is less than
4.3 Downward game complains and actually not started at all. Below is the last
commit in mesa which I could use for testing:

commit d2590eb65ff28a9cbd592353d15d7e6cbd2c6fc6
Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Fri Jan 13 22:53:34 2017 -0800

    i965: Enable OpenGL 4.5 on Haswell.

    Everything is in place and the test results look solid.

    Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
    Reviewed-by: Matt Turner <mattst88 at gmail.com>
    Reviewed-by: Samuel Iglesias Gonsálvez <siglesias at igalia.com>

With older Mesa commits Downward game is not run. I also tried more older

commit 75968a668e44b3fd7c9b9277937c005366fca116
Author: Juan A. Suarez Romero <jasuarez at igalia.com>
Date:   Tue Oct 11 15:05:36 2016 +0000

    i965/gen7: expose OpenGL 4.2 on Haswell when supported

    GL_ARB_vertex_attrib_64bit was the last piece missing.

    v2: update docs (Jordan)

    Signed-off-by: Juan A. Suarez Romero <jasuarez at igalia.com>
    Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>

and manually changed OpenGL version to 4.5 in mesa sources to make Downward
run. But anyway issue is still reproducible there.

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