Re: wake event?

[Brian Perkins <bperkins-ooduxAEi7gVg9hUCZPvPmw@public.gmane.org>]

Yu, Luming wrote:
> Could you please give me some detail about your power management client?
> 

Well, one is good old (bad old) battstat, which has been recently 
patched to use the acpid unix socket to receive battery and AC events, 
instead of polling once per second.  This is a pretty big win on my 
machine, and an even bigger win on other machines.

I also wrote a simple perl script to manage cpufreq transitions based on 
AC status, mostly for fun.

If the laptop is unplugged while sleeping, the battstat applet is 
incorrect on waking, and my cpufreq daemon doesn't go to low power mode.

I can't think of a way of dealing with this, other than polling, which 
is dumb and bad.

I suppose this could be considered a userspace problem, but the current 
design seems to make this a little complicated, since acpid doesn't 
really know what its actions do.


-------------------------------------------------------
This SF.net email is sponsored by: SF.net Giveback Program.
Does SourceForge.net help you be more productive?  Does it
help you create better code?  SHARE THE LOVE, and help us help
YOU!  Click Here: http://sourceforge.net/donate/