What worked for me (HP EliteBook 850 G3, HP UltraSlim Dock 2013, Ubuntu 16.04). In terminal type: alsamixer Click right arrow to select "Headphone" and press M (to Mute or unMute). After i "unMute", sound appears on the ultraslim dock connected speakers.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1470730 Title: [HP EliteBook 840 G2, Realtek ALC3228, HP UltraSlim Dock 2013] Line in/Line out on docking station doesn't work To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1470730/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
