Default option for volume hotkeys (speakers/headphones)

Arwyn Hainsworth arwynh+ubuntu at
Sun Aug 26 16:02:10 UTC 2007

On 27/08/07, Matthew Garrett <mjg59 at> wrote:
> On Sun, Aug 26, 2007 at 03:33:06PM +1200, Aaron Whitehouse wrote:
> > 3) Cleverly determine whether headphones are plugged in. If they are,
> > make the hotkeys control "Headphones" and if they are not, control
> > "Master".
> 4) Alter the kernel so that it binds the headphone and master channel
> together. That's how it's handled on various pieces of hardware.

I have both Headphone and Master set to 50% and then bind the hotkey
to PCM which affects them both as a workaround, but that wouldn't work
on all systems. Would it be possible to create a virtual channel that
affects both Master and Headphone channels, to which the hotkey can be


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