Ubuntu 10.10 - Dell Lattitude D630 - How to disable headphones muting speakers.

[bshosey]

I would like to disable the headphone jack shutting off main speakers when I plug headphones in. I know this sounds odd. But when I use mixxx I would like to be able to use the line out for external amp hook up. The headphones for cueing. This worked after I installed mixxx but once I rebooted the computer it no longer worked.

[cepal]

I would like to disable the headphone jack shutting off main speakers when I plug headphones in. I know this sounds odd. But when I use mixxx I would like to be able to use the line out for external amp hook up. The headphones for cueing. This worked after I installed mixxx but once I rebooted the computer it no longer worked.

Well AFAIK I used to have a checkbox in alsa-mixer gnome-applet to switch the auto-sensing "feature". The volume control in the indicator-applet doesn't seem to provide this checkbox in the "Sound Preferences"... I donl't know mixxx but it should have also such checkbox, otherwise it could hopefully be somewhere in gnome configuration but not sure where... maybe using google might help (you, not me - as I don't need it ).

CePal

[lidex]

I would like to disable the headphone jack shutting off main speakers when I plug headphones in. I know this sounds odd. But when I use mixxx I would like to be able to use the line out for external amp hook up. The headphones for cueing. This worked after I installed mixxx but once I rebooted the computer it no longer worked.

Probably more trouble than its worth. How about using a splitter on the line out?
The only easy thing I can think of is disabling jack-sensing. Best done with gnome-alsamixer.
But not all systems have it.