* 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. btw., how far are you from having a working prototype? Ingo _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
