[Intel-gfx] glXSwapBuffers tearing and dropped frames

Barry Scott barry.scott at onelan.co.uk
Thu Jun 25 12:56:07 CEST 2009

The attached swap-buffer-composite-test.c demonstrate that
glXSwapBuffers tears the first line of the screen.
I have tested at 1920x1200 at 60Hz and 1024x768 at 60Hz.

kernel 2.6.30
xserver 1.6.1

xf86-video-intel from git 
b5cd2130f97591f4a387db1b98c940c30bc6404c with
our patches posted to this list
for portrait mode and 2048x2048 XV.

Mesa from git, branch origin/mesa_7_5_branch, commit

I assume that this is because the GPU has not been 
programmed correctly.

Do you want this logged in bugzilla?


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