On 1 May 2010 00:06, Jesse Barnes <jbar...@virtuousgeek.org> wrote: > On Fri, 30 Apr 2010 13:04:23 +0100 > Pedro Ribeiro <ped...@gmail.com> wrote: > >> Hi all, >> >> My Xorg.log shows >> >> (**) intel(0): Kernel mode setting active, disabling FBC. >> (**) intel(0): Framebuffer compression disabled >> >> Is this normal? I'm trying to lower power consumption for my laptop... >> Enabling FBC should do it? >> >> I have >> fbpercrtc=0 >> modeset=1 >> powersave=1 >> lvds_downclock=1 >> enabled on the i915 module. > > It's just a stale message, I'll remove it. FBC will be enabled by your > kernel if possible (you can check /sys/kernel/debug/dri/0/ for status > info if you have debugfs mounted). > > Jesse >
Thanks for the heads up, actually measuring the power consumption between KMS and UMS with FBC enabled it seems that KMS wins by a very slim margin. Its a great job you guys are doing with this driver! I see it improve steadily on every kernel release. The only things I still miss is the render reclock support which was removed in 2.6.32.4 - it worked wonderfully in my machine, reducing power consumption by 2w when idle; and multiple ring buffer support(for libva H.264) which seems to be coming in the Q3 this year :-) Regards, Pedro _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
