[Intel-gfx] reducing GM965 power usage when using inteldrmfb

[Jesse Barnes]

On Mon, 11 Jan 2010 22:06:49 +0330
Ali Gholami Rudi <aliqrudi at gmail.com> wrote:

> Hi,
> 
> 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