Hi, I'm writting a 2D-app with double buffering. I use the env variable vblank_mode=3 for syncing to vblank and avoiding tearing. The monitor VertRefresh is set at 60 Hz.
I'm using Xorg 7.1.1 + mesa 6.51 + i810 1.7.2 I have noticed a strange behaviour: - In a light app where more than 60 FPS are achieved, the app syncs to vblank (getting 60FPS) and there is not tearing. - If I insert some sleep in the applications to get less than 60FPS, it syncs to 30Hz, 15Hz and so on. Perfect. - In a heavy app where less than 60 FPS are achieved, setting vblank_mode=3 doesn't sync with VertRefresh (ie: getting 37FPS) and tearing appears. ¿Is it normal? ¿Maybe pending interrupts are not being handled properly? Thanks in advance ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mesa3d-dev mailing list Mesa3d-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mesa3d-dev