On Sun 2007-12-30 12:15:52, Ingo Molnar wrote: > > * Pavel Machek <pavel@xxxxxx> wrote: > > > Todays hardware is mostly capable of doing better: with correctly set > > up wakeups, machine can sleep and successfully pretend it is not > > sleeping -- by waking up whenever something interesting happens. Of > > course, it is easier on machines not connected to the network, and on > > notebook computers. > > > > Requirements: > > > > 0) Working suspend-to-RAM, with kernel being able to bring video back. > > > > 1) RTC clock that can wake up system > > very nice approach! It might require smarter hardware to be really > efficient, but the generic ability for Linux to utilize S3 automatically > would _quickly_ drive the creation of smarter hardware i'm sure - so i'd > propose to include this even if it wastes power in some cases. > > a quick feature request: could you please make the wake-on-RTC > capability generic and add a CONFIG_DEBUG_SUSPEND_ON_RAM=y config option > (disabled by default) that does a short 1-second suspend-to-RAM sequence > upon bootup? That way we could test s2ram automatically (which is a MUCH > needed feature for automated regression testing and automatic > bisection). In addition, some sort of 'suspend for N seconds' /sys or > /dev/rtc capability would be nice as well. Hmm, are you sure it is good idea to do this from kernel? I guess this is better done from script... > btw., how far are you from having a working prototype? SCSI/SATA issues stop me just now, but even if I get that to work, it will be extremely disgusting hack... and it is unclear how to do it nicely :-(. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
