RFC: powerd Patch & proposed future changes
aragon at phat.za.net
Tue Jul 7 03:58:44 UTC 2009
Erich Dollansky wrote:
> Yes, it makes sense that powerd is enabled to run external
> programs triggered by events powerd has to monitor.
> I would not limit it to AC/DC changes. powerd could also run
> external programs when falling below a certain speed and coming
> back above a certain speed again.
> This would allow also to dim the LCD when less power is used
> because notbody is using the screen. It might will not make sense
> for most uses but for some.
Can you think of a better example? LCD dimming can already by handled
by Xorg's DPMS. And LCD dimming and CPU usage are not directly related.
If I walk away from a port compiling, I don't want powerd to keep my
LCD on because the CPU is at 100%.
> powerd's main idea is to save energy. Allowing a second program to
> parse through a file is not what will save energy.
Neither will constant spawning of new processes.
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