Hi! > > I noticed ALSA hda seems to only change PCI power management states > > of the sound devices on suspend/resume. Is there a reason the device > > cannot be automatically suspended when nobody has sound opened? > > I made once the automatic power-control patch for hd-audio, but it was > possibly racy and a bit messy implementation, so I abandoned it. > Since then, no one has worked on this issue. IIRC that patch saved .3W, which is quite significant -- about half of spinning harddrive. I'd say it is worth the effort. -- (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
