The other thing that changed in this area between 19.04 and 19.10 was the kernel, so we need to rule that out first before pursuing PulseAudio. Please try installing kernel 5.0.0 which is more like what was in Ubuntu 19.04:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.0/ Then run 'uname -a' to confirm the older kernel is active. Does the bug still occur there? ** Changed in: pulseaudio (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1858200 Title: pulseaudio produces garbage on HDMI after 19.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1858200/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
