[Intel-gfx] [PATCH resend] drm/i915: enable memory self refresh on 915/945

Li Peng peng.li at linux.intel.com
Mon Jan 25 12:20:23 CET 2010


On Sun, Jan 24, 2010 at 08:01:30PM +0100, Tino Keitel wrote:
> On Sat, Jan 23, 2010 at 23:56:37 +0100, Tino Keitel wrote:
> 
> [...]
> 
> > I don't know if other changes in 2.6.33-rc5 have any impact on the
> > power consumption, but compared to 2.6.32 it dropped from 8,6W to 7,7W
> > with an idle desktop on my ThinkPad X61s (i965) when using 2.6.33-rc5
> > with this patch.
> 
> Hi,
> 
> I just tested without the patch, and power consumption was still as low
> as before. So it seems other changes in 2.6.33-rc5 are the cause for
> this.
>

The patch title isn't accurate, sorry for that. it should only works for 
915/945GM family, not including 965, if you have a netbook with 945 chipset, 
you can try this patch and see if it save idle power for you.

Peng

> Regards,
> Tino
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