I recently switched from DisplayPort to HDMI for connecting my computer to my display. Generally, the audio works fine via the built-in speakers in the monitor via HDMI but after the computer goes to sleep it no longer works. I have checked the Sound settings and there are no output devices listed. Any ideas?

This occurs on Ubuntu 18.10 and I upgraded to 19.04 today and the issue persists.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 19.04
Release:    19.04
Codename:   disco
$ cat /proc/version
Linux version 5.0.0-13-generic (buildd@lcy01-amd64-020) (gcc version 8.3.0 (Ubuntu 8.3.0-6ubuntu1)) #14-Ubuntu SMP Mon Apr 15 14:59:14 UTC 2019

Before: Before

After: After

  • Welcome to askubuntu: Which version of Ubuntu and Kernel are you using? (run lsb_release -a and cat /proc/version in the console, then update your question) – Simon Sudler Apr 18 '19 at 8:07
  • Sorry, details added. – zzgt Apr 19 '19 at 2:16
  • This sounds like a dupe of question 762816 or question 777515. – skierpage Jul 13 '19 at 4:55
  • What is the output of pactl list short sinks and pactl info? Try to run systemctl --user restart pulseaudio and report whether restarting pulseaudio that way fixes your problem – Syfer Polski Jan 14 at 9:34

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