On 2/9/2012 5:14 AM, Paul Menzel wrote: > Am Samstag, den 04.02.2012, 10:40 -0800 schrieb Arjan van de Ven: >> On 2/4/2012 10:10 AM, Paul Menzel wrote: > >>> looking at the output of PowerTOP 1.97 on two laptops the usage of the >>> audio codec is always 100 % after the boot. >>> >>> 100,0% Device Audio codec hwC0D0: >>> Realtek >>> >>> The same is true with a Conexant codec. >>> >>> This happens although power management in ALSA is set up and no sound is >>> played. >>> >>> $ more /sys/module/snd_hda_intel/parameters/power_save_controller >>> Y >>> $ more /sys/module/snd_hda_intel/parameters/power_save >>> 1 >>> >>> Most of the time I can get that behavior to change when I play some >>> audio and then stop it. >>> >>> Could you confirm this issues? Then I could possibly send a report to >>> the ALSA folks. >> >> I've seen it a few times when pulse audio kept the guy busy... >> you can check that by killing the pulseaudio daemon >> (don't worry, it'll come back the next time you play a sound) > > Thank you for the suggestion. PulseAudio is not installed on the system > though. How can I find out which process is using an audio device?
uhm try the "lsof" tool or you found a real kernel driver bug ;-) _______________________________________________ Discuss mailing list [email protected] http://lists.lesswatts.org/listinfo/discuss
