I have had this problem since a long time. With kernel 4.13 it seems to be fixed.
** Tags added: kernel-fixed-upstream ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1712427 Title: No audio output to Speakers when HDMI cable removed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1712427/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs