Comment 51 for bug 874535

the only point is your green line out is not pluuged

when the headphone is unplugged,

do module-switch-on-port-available switch to your spdif device ?

hda specification only need GET_PIN_SENSE to get the detection,

do the driver really need to use SET_PIN_SENSE when pincap support trigger ?

you can use the following command when headphone is plug and unplugged to find out whether the driver really need to execute SET_PIN_SENSE

sudo hda-verb /dev/snd/hwC0D0 0x1b GET_PIN_SENSE 0