[ltp] C4 state on x60s - any news?

[Stefan Blum]

On Thursday 17 May 2007 11:23, Damien Challet wrote:
> On Thursday 17 May 2007 10:10:18 Michael Gaber wrote:
> > i heard the following, please correct me if i'm totally wrong:
> > windoom has some problems with states >C3 so the bios hides these from
> > the OS.
> > also in states >C3 the cache will eventually lose data or become
> > inconsistent, so we don't go there normally. if you see C4 in your
> > /proc/bla/whatever after a suspend/resume cycle the bios was not quick
> > enough to hide this state
>
> on a T41, the C4 state appears when one uses the battery and disappears
> when running on AC.
No C4 shown under powertop even when on battery

>
> the power save is about 0.5W I think.
would be alot if your down to 8.3W on an idle system...

Regards, Stefan