In Reply to: Mark Brown <broonie at sirena.org.uk> > On Fri, Oct 07, 2011 at 07:21:44PM +0200, Paul Menzel wrote: > > > I am not sure. 4 W power consumption of a sound chip sounds quite a lot > > to me. Additionally as written above please try a newer version. > > That's many orders of magnitude more than is sane unless there's very > loud sound coming out of the speakers. Something beyond the audio > specific hardware must be impacting the numbers. The numbers are read from the battery chip (/sys/class/power/BAT0/power_now) and are rougly matching with the runtime observed. Maybe they are a little optimistic. But I think the numbers have to be seen in context. 6-9W in idle is not bad for a performance oriented notebook, but I also have used all "stable" power saving tweaks that I am aware of. So if playing audio will wake up the sound chip, power the speakers, wake up the bus from power saving mode, ..., that might seam realisitc. I don't know enough about modern harware in that regard. regards, Andreas
