[alsa-devel] explicit commandline control of speakers vs headphone output
eric_holstege at yahoo.com
Wed Aug 25 18:41:47 CEST 2010
It appears that when I have a headphone plugged in, the speakers are
automatically disabled and the output sound is sent to the headphone.
However, I want to explicitly control (e.g. via a script or commandline
- not a GUI) whether the sound from an (arbitrary) application is going
to the speakers or to the headphone even when the headphone is plugged in.
(When I say "arbitrary application" that means I can't alter the code of
the application itself).
Is this possible?
(I have heard that ALSA mutes the speakers when it detects plugged-in
headphones. Is switching between them as simple as using e.g. amixer(1)
to unmute the speakers and mute the headphones and vice versa, or is
there more to it.)
More information about the Alsa-devel