Re: Average power consumption in S3?
From: Jan De Luyck
Date: Fri Mar 11 2005 - 15:11:17 EST
On Wednesday 09 March 2005 15:40, Matthew Garrett wrote:
> Moritz Muehlenhoff <jmm@xxxxxxxxxx> wrote:
> > I'm using an IBM Thinkpad X31. With stock 2.6.11 and the additional
> > radeontool to power-off the backlight in suspend, S3 works very well
> > and reliable. During S3 I've measured a power consumption of 1400
> > to 1500 mWh (using 512 megabytes of RAM). Is there still room for
> > optimization? What's the typical amount of energy required for suspend-
> > to-ram? From friends using iBooks with MacOS X I've heard that they
> > left the notebook in suspend when leaving for a week and could still
> > use it after return.
> Radeons don't actually power down in D3 unless some registers are set,
> and even then the kernel doesn't currently have any code that would put
> the Radeon in D3. If you're willing to test something, could you try the
> code at
> and do
> radeontool power off
> immediately before putting the machine into suspend? Make sure that you
> do this from something other than X.
Small question, can this tool do what the boot-radeon tool can? That way I can
scrap another one in my suspend-to-ram tricks ;p
I tripped over a hole that was sticking up out of the ground.
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