Created attachment 118688 [details]
X log

I was trying to see if GL Excess demo still works - it does, but only some
scenes rendered correctly.

Demo: http://www.glexcess.com/files.htm

Hardware: 01:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce
6600 GT] (rev a2)

Mesa: OpenGL version string: 2.1 Mesa 11.1.0-devel (git-93161be)
drm: commit 8c4a1cbd98bd8d185d489395f33302a17db643a9 ("xf86drm: Fix error
handling for drmGetDevices()")
xf86-video-nouveau: commit 1ff13a922535924681b91452235b017e43a4c6f6 ("fix build
after glamor removal")
kernel from nouveau/4.3 branch: 4.2.0-rc8-40978-g778613e5
X server - standard 1.14.3 from Slackware 14.1
wine (yes, I know, old - but then same demo works with LIBGL_ALWAYS_SOFTWARE=1,
so not only wine's fault. I can upgrade after some time):
wine-1.5.25-1-gc2505fd