Am Mittwoch, den 08.10.2008, 11:18 +0100 schrieb Andy Green: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Somebody in the thread at some point said: > | This patch adds a framebuffer notifier in order to detect > | FB_BLANK events and switch the JBT6K74 LCM controller into > | its power saving mode. > | > | This has the potential of saving something like 50mW during screen blank. > > | + struct notifier_block fb_notif; > > Thanks, that's educational, I never met it before; it certainly made for > a short patch. I sent it on stable. > > The only thing I guess to be aware of is that this is disconnected from > /sys control of backlight device status unless I missed a point > somewhere, it means that framebuffer blanking is now better for power > than turning down backlight by /sys and should be preferred.
What does that mean for userland? AFAICT echo "1" >/sys/class/backlight/whatever/bl_power should give the maximum power savings -- no? :M:
