Re: Power usage in S3

[Vernon Mauery <vernux-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>]

Tim Dijkstra wrote:
> Hi,
> 
> Since a couple of weeks I have S3 working on my laptop (yeah!), but then
> I stared wondering how long I can walk around with my laptop suspended.
> 
> By keeping it suspended for a night and extrapolating the measured power
> usage I concluded it can stay suspended (starting with batteries fully
> loaded) for about 2.5 days. That doesn't seem awfully long to me...
> Especially if you take into account the fact one usually suspends
> after using it for while when it's at, say, 20%.
> 
> So now I wonder, what usage do other people see?

I finally got the power issues resolved on my Thinkpad T40 too.  It can only
sleep in S3 for about 2 days too.  But, with a new high-capacity battery, it
could probably go for 4 days.  My wife's Thinkpad R40p can go for about a week,
but it has a new battery and the FireGL T2 graphics card rather than the Radeon
7500.  And it didn't need the radeon power stuff -- it only needed
acpi_sleep=s3_bios.  But, I am sure we can do better than 2-2.5 days... *But*, I
am very pleased that we have come this far.  For almost a year, I was using
swsusp2 every night going home from work.  As nice as that is, it still is too
slow for an overnight sleep.

--Vernon



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