McDonald, Michael-p7438c wrote: >>> Well whatever we call, it's no longer useful for sanity checking if >>> it's limited to 60fps :-) >> Heh. This means you can tell we're finally dealing with vertical >> retrace in a sane way, so others may disagree ;-). >> - Jim > > Dumb question: Do LCD/Plasma/OLED/... Actually have vertical retrace? > Does the vblank interval approach 0?
The longer decay time (the time it takes to change the color of a pixel) on LCD's allows for lower vsync rate but as long as the monitor is connected using a cable the length of the cable, or actually its capacitance will affect what can be considered a "sane" vsync rate. But I took computing science so I really have no idea what that means :-) FWIW, you can choose if you want mesa opengl apps to slow down to draw only at vsync rate (use /etc/drirc or ~/.drirc) and some apps (like compiz) even give the the option to configure this in preferences. Finally, sync_to_vblank or not, if someone wants a better benchmark than glxgears, then one option is to look into the phoronix test suite: http://www.phoronix.com/scan.php?page=news_item&px=NzA3Mg Martin _______________________________________________ xorg mailing list xorg@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/xorg