Hi, The lesswatts.org site suggests setting NoDRI to get rid of the vsync interrupts.
First I tried the default configuration my Intel Mobile GM965/GL960 card, with intel_drv version 2.3.2. All good, no interrupts from the video card showing up in powertop. That is until I run glxgears. During the run of glxgears I get high number of interrupts from the videocard (I know OpenGL needs it for now). BUT, after I quit glxgears, I *still* get the same high number of interrupts, and only a restart of X gets me back to no interrupts :( Second I tried with NoDRI, all good since running glxgears doesn't require the vsync interrupts (its lot slower, doesn't matter I don't use 3D much). The problem is that the backlight controls don't work anymore! Neither with Fn+Home/End (the brightness popup from gnome appears, and slider moves, but backlight remains constant), neither with 'xbacklight -set'. Tried setting to 0/50/100, read back ok, but backlight not modified. If I restart Xorg without NoDRI, the backlight setting works perfectly! (With 2.6.28 I even have multiple brightness levels, as opposed to 2.6.26 which only had 2 levels) Is this a bug in the intel driver, or is this a generic issue (NoDRI -> no backlight controls)? P.S.: should it matter, this is on a Lenovo Thinkpad X300 Best regards, --Edwin _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
