I also have this problem. I have a Lenovo P50 with the Lenovo Thinkpad Workstation Dock (40A50230US) and the sound does not work when I use the dock.
I have: Ubuntu 14.04.5 LTS 4.4.0-38-generic ** Attachment added: "Screenshot of sound settings with laptop plugged into the dock." https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1630860/+attachment/4764316/+files/Screenshot%20from%202016-10-20%2008%3A25%3A31.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1630860 Title: [HDA-Intel - HDA Intel PCH, playback] Playback problem To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1630860/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
