[Intel-gfx] reducing GM965 power usage when using inteldrmfb
jbarnes at virtuousgeek.org
Mon Jan 11 12:05:11 PST 2010
On Mon, 11 Jan 2010 22:06:49 +0330
Ali Gholami Rudi <aliqrudi at gmail.com> wrote:
> I have a mobile intel GM965 chip. Is it possible to activate
> FBC or reduce the clock frequency without using xorg (when using
> only inteldrmfb)? As far as I can tell, the xorg driver performs
> at least a few ioctl()s to activate FBC.
FBC requires a tiled buffer, which takes up a lot more memory. It
should be possible to modify the fb driver's allocation to use one
though, which should automatically enable FBC.
Jesse Barnes, Intel Open Source Technology Center
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