2010/4/16 <[email protected]>: > > > 16.04.10, 10:58, "Alex Deucher" <[email protected]>: > >> On Fri, Apr 16, 2010 at 10:16 AM, wrote: >> > >> > Enabling kms with r600 causes serious problems with vsync. For example, >> glxgears with low-res window works just as there is no vsync, and with large >> window fps becomes 60, but visible and regular lags appear - rendering just >> stop approximately once a second for a sort moment. EXAVSync options seems >> has no effect. Also there is following error when starting gl apps: >> > >> > do_wait: drmWaitVBlank returned -1, IRQs don't seem to be working >> correctly. >> > Try adjusting the vblank_mode configuration parameter. >> > >> > Adjusting vblank_mode var doesn't work ether. With ums there is no sync >> problem. >> > >> >> those options are not supported under kms at the moment. >> >> > I'm using Debian Squeeze with mesa 7.7.1-1 and radeon 6.13.0-1. Also i >> have two 1920x1080 panels connected via dvi. >> >> What kernel are you using? You need 2.6.33 for r6xx+ irq support >> which is required for vblank irqs. >> >> Alex >> >> > > I've installed 2.6.33, there is indeed no drmWaitVBlank error, but the > problem still exists. >
The dri_config vblank options don't work with kms. you need to use one of the GLX vsync extensions. Alex _______________________________________________ xorg-driver-ati mailing list [email protected] http://lists.x.org/mailman/listinfo/xorg-driver-ati
