Created attachment 63509 [details] Edge of screen looks badly Attachment shows kind of problem. It displays sometimes on left or right edge of screen. Problem is on mesa 8.0.3 Intel 965GM Chipset intel driver: 2.19 mesa: 8.0.3 linux-image: 3.3.6 On old mesa 7.11.2 it looks good.
Created attachment 63510 [details] Edge of screen looks badly
note to self: Possibly failure at porting gen4 clipping workarounds to new VS backend?
Well...the negative RHW workaround is definitely commented out in the new code, and that's specific to Broadwater and maybe Crestline, so that seems like a likely candidate...
Created attachment 70176 [details] screenshot from mesa 9.0.1 Now it looks like in attachment.
To reproduce it: - download STK 0.8 http://sourceforge.net/projects/supertuxkart/files/SuperTuxKart/0.8alpha/ - run game - run Story Mode - click one of cups on the map, for example this from screenshot It shows usually, when edge of track is in corner of screen.
You can see this bug also in other games. For example, today I had it in Half Life 2. So it's not problem only with STK.
Trace at http://people.freedesktop.org/~anholt/supertuxkart.trace, shows the bug a few frames from the end on my GM965, but not on GM45 or IVB, so the gen4 clipper bug sounds likely.
Thanks for the report! (and sorry for leaving this regression around for so long) commit cb4616d32dc85e60dba08d86581dbb0d6d1b7ffa Author: Eric Anholt <eric@anholt.net> Date: Wed Feb 6 15:22:45 2013 -0800 i965: Re-enable the -RHW workaround for original gen4 chips. Fixes broken clipping in supertuxkart and presumably many other applications Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51471 NOTE: Candidate for the stable branches. Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.