Kai, there was a commit related to this issue, can you check if it solves it?
pulseaudio (1:0.9.16~test5-0ubuntu2) karmic; urgency=low [ Daniel T Chen ] * debian/patches/0051-leave-hp-enabled.patch: Leave headphones enabled in the default analog mixer profiles In case that you still experience this issue after update, please let us now Also you can check bug 387866, seems to be the same bug ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- Internal speakers are not disabled if speakers are plugged into E-Port docking station (Dell Latitude E6400) 8086:293e Codec IDT 92HD71B7X https://bugs.launchpad.net/bugs/383756 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs