I also have same problem on Ubuntu 20.04 (kernel: 5.4.0-18-generic) on both HDMI or USB-C, used to work fine on 19.10 with 5.3.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1845704 Title: HDMI monitor is not detected as sound output device starting from kernel 4.18.0-21 and above, Ubuntu 18.10 and 19.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1845704/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs