OHM power management

  This page is monitored by the OLPC team.

Please copy/paste "{{Translationlist | xx | origlang=en | translated={{{translated}}}}}" (where xx is ISO 639 language code for your translation) to OHM power management/translations

HowTo [ID# 62477]  +/-

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?