[alsa-devel] snd-powermac @ G4 DA (PowerMac3, 4) - headphone detection doesn't work

[Risto Suominen]

Sounds strange. MM-ing 'Auto Mute' would mean disabling it, so
plugging anything should have no effect.

You could try running alsamixer while plugging in the headphones. This
should be instantly visible: 'Headphone Detection' MM -> OO, 'PC
Speaker' OO -> MM. (when 'Auto Mute' OO)

On my iMac G4 800 MHz, with Tumbler audio and ALSA driver 1.0.22.1,
everything works with snd-powermac.

Risto