you have to post output of alsa-info.sh pactl list
pactl stat examine system log and look for edid of your monitor which your graphic driver and drm get from your monitor -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1244361 Title: HDMI/DisplayPort is selected as sound output even when connected display has no sound capability To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1244361/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs