OHM power management
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OHM Policy
Original RFC to mailing list...
o On momentary power button:
turn off screen, suspend machine, leave keyboard and wireless on;
keyboard/touchpad will cause instant on again. o On lid close on battery, should turn off keyboard, turn off screen
Then should suspend to RAM, including disabling and powering down wireless
o on lid close, on power, leave the machine on and running. o On lid open, turn on keyboard, reset keyboard, resume from suspend, turn wireless back on, tell NM to reassociate (maybe only after some delay), try previous association first, of course... o On ebook mode, should turn off keyboard o On lid open, should reset keyboard o on ebook to non-ebook mode, should reset keyboard o on external power supply on *or* off, should reset touchpad o rotate should probably be done by OHM.
When we are suspended, and the battery wakes us up because it is "low", then:
For now, graceful shutdown after journal has been notified
May do hibernation if enough flash is available.
Task: Tune the default DPMS parameters.
Reset keyboard instructions are in trac.
The big question is: how to do idle?
X DPMS extension? X SS extension? cpuidle kernel patch, about to go
mainline in Linux, with module to tell ohm the system has been idle? other ideas?