Comment 11 for bug 396563

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Matt Zimmerman (mdz) wrote :

I see similar behavior on my ThinkPad T61, and I can work around it through Sound Preferences (right-click on the volume applet). There is a drop-down there which selects between headphone output and speaker output.

Apparently, connecting the headphones disables the speakers, but doesn't flip this toggle?

Note I'm running the ubuntu-audio-dev PPA with the latest pulseaudio etc.