At Sun, 20 Dec 2009 23:00:57 +0100, Hector Martin wrote: > > Missed a coupld #ifdefs, resending. > > The current Realtek code makes no specific provision for turning stuff > off. The codec chip is placed into low-power mode generically, but this > doesn't turn off any external hardware connected to it, in particular > external amplifiers. > > This patch creates a hook function that is called by the codec > suspend/resume functions. It ought to disable any external hardware in a > device-specific way. I've implemented a generic ALC889 function that > sets the EAPD pin properly, and used it for the Acer Aspire 8930G which > can benefit from this feature. > > On my laptop, this results in ~0.5W extra savings. This is nice. Maybe we should a bit more generalized also for other machines. But now applied as is for the next pull request. Thanks. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
