On Sat, Oct 17, 2020 at 05:52:58PM +0200, Jan Stary wrote: > Currently, mixerctl.conf(5) says > > Most devices have a number of digital to analogue converters > (DACs), used for sound playback, and each DAC has a corresponding > output mixer. The mixers are labelled “mix” or “sel”. > > That doesn't seem to be the case, at least not universaly > as the wording seems to imply. For example, this is > mixerctl output on a Thinkpad T400: > > inputs.dac-0:1=222,222 > inputs.dac-2:3=222,222 > inputs.beep=0 > record.adc-2:3_source=mic2 > record.adc-2:3=219,219 > record.adc-0:1_source=mic > record.adc-0:1=219,219 > outputs.hp_source=dac-0:1 > outputs.hp_boost=on > inputs.mic=189,189 > outputs.mic_dir=input-vr80 > outputs.spkr_source=dac-2:3 > outputs.spkr_eapd=on > inputs.mic2=189,189 > outputs.hp_sense=unplugged > outputs.mic_sense=unplugged > outputs.master=240,240 > outputs.master.mute=off > outputs.master.slaves= > record.volume=240,240 > record.volume.mute=off > record.volume.slaves= > record.enable=sysctl > > Apparently, it has two DACS (for the speakers and the headphones). > The current wording might confuse the user into thinking he has > no output mixer, but the > > inputs.dac-0:1=222,222 > inputs.dac-2:3=222,222 > > do control the respective volumes, > while no "mix" or "sel" exists. > > Similarly for recording via the two ADCs. > > > Jan
Thank you! +1 I had no idea what was going on and had basically given up on having the speakers off. changing outputs.master moves BOTH inputs.dac. Which is superbly confusing! Now I just manually changed each inputs.dac alone. Headphones plugged in -> speakers are off and headphones work. Unplug headphones -> speakers now turn on instead. I couldn't be happier. 8-} Chris Bennett
