Yes, it seems to be a 'multiple users logged in' thing. Use the sound in one user, then - at some seemingly random point that's NOT while something is actually playing - discover that the sound system is disabled. It's possible that both users have it not working, or one to work and one not to.
Attached is the logs for a second - not using the GP107GL chipset - PC where it's just happened. Sound was working fine in one user (and still is) and disabled in the second. They logged in at about 16:30... ** Attachment added: "logs" https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1853374/+attachment/5307739/+files/logs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1853374 Title: pulseaudio disables GP107GL output every so often To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1853374/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs