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.
Created attachment 45436 [details] Distorted vertices or missing triangles 1
Created attachment 45437 [details] Distorted vertices or missing triangles 2
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
(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?
(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?
I mean finding the "fix", i.e. when it started to work again.
(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.
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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