https://bugs.freedesktop.org/show_bug.cgi?id=36099
Summary: Vertex distortion bug in the game Xonotic Product: Mesa Version: 7.10 Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r300 AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: vand2@gmx.de
In the Mesa versions 7.9.0 - 7.10.2 I get strange triangle distortion bugs in the game Xonotic. They don't appear in 7.8.2.
http://xwmw.org/misc/triangle_bug_01.jpg http://xwmw.org/misc/triangle_bug_02.jpg
glxinfo | grep string
server glx vendor string: SGI server glx version string: 1.2 client glx vendor string: Mesa Project and SGI client glx version string: 1.4 OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on ATI RV570 OpenGL version string: 2.1 Mesa 7.10.2 OpenGL shading language version string: 1.20
Sebastian H.
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #1 from vand2@gmx.de 2011-04-09 03:12:00 PDT --- Created an attachment (id=45436) --> (https://bugs.freedesktop.org/attachment.cgi?id=45436) Distorted vertices or missing triangles 1
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #2 from vand2@gmx.de 2011-04-09 03:12:47 PDT --- Created an attachment (id=45437) --> (https://bugs.freedesktop.org/attachment.cgi?id=45437) Distorted vertices or missing triangles 2
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #3 from vand2@gmx.de 2011-04-09 05:45:07 PDT --- With the current git version the distortions are gone and all looks ok.
glxinfo now: glxinfo | grep string
server glx vendor string: SGI server glx version string: 1.2 client glx vendor string: Mesa Project and SGI client glx version string: 1.4 OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on ATI RV570 OpenGL version string: 2.1 Mesa 7.11-devel (git-d27ff8c) OpenGL shading language version string: 1.20
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #4 from Marek Olšák maraeo@gmail.com 2011-05-06 05:56:30 PDT --- (In reply to comment #3)
With the current git version the distortions are gone and all looks ok.
Could you possibly bisect the fix, so that we can get it to 7.10.x?
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #5 from vand2@gmx.de 2011-05-06 09:56:55 PDT --- (In reply to comment #4)
(In reply to comment #3)
With the current git version the distortions are gone and all looks ok.
Could you possibly bisect the fix, so that we can get it to 7.10.x?
Do you mean finding the git commit between 7.8 and 7.9 after which the issue appeared?
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #6 from Marek Olšák maraeo@gmail.com 2011-05-06 10:17:04 PDT --- I mean finding the "fix", i.e. when it started to work again.
https://bugs.freedesktop.org/show_bug.cgi?id=36099
--- Comment #7 from vand2@gmx.de 2011-05-06 12:20:32 PDT --- (In reply to comment #6)
I mean finding the "fix", i.e. when it started to work again.
Ok, I reverted back to 7.10.2 and libdrm 2.4.23. but the bug didn't show up as I expected. But by also reverting the kernel back to 2.6.32 the bug was there again.
So Mesa 7.10.2 + Kernel 2.6.32 -> bug Mesa 7.10.2 + Kernel 2.6.38 -> no bug
It seems that it actually was a kernel issue and not a Mesa one.
https://bugs.freedesktop.org/show_bug.cgi?id=36099
Marek Olšák maraeo@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |NOTOURBUG
--- Comment #8 from Marek Olšák maraeo@gmail.com 2011-05-06 12:30:05 PDT --- OK. I am closing this as NOT-OUR-BUG. r300g in Mesa 7.11 doesn't support old kernels anyway (the last supported kernel is 2.6.34 and even that one contains some bugs AFAIK).
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