This morning I updated my laptop (20.04.1), Software Updater listed Firefox, LibreOffice and Ubuntu Budgie Base.
After a reboot, my sound output device is only a dummy, no other option available:
I tried lot’s of suggestions online, discovered it was a common issue in the past.
I have an AMD Ryzen 4800U laptop with I believe Realtek audio, not Intel.
Nothing I tried solved the issue. So I used TimeShift (phew!!) to go back to last week (4nov).
This solved it for me. I then created a backup of
/etc/modprobe.d/blacklist.conf, performed the update, rebooted, again had the Dummy Output issue, copied those two backupped files to /etc/modprobe.d, rebooted: still had the Dummy Output issue
For now I restored with TimeShift again and I will not perform an update. Please let me know what information I can gather to figure out the root cause.