Finally did upgrade from 16.04 to 18.04. After logging back in I've run into multiple issues.
I believe the issue is in my "gnome user profile". Everything seems to work when logged in as different user.
I fixed some issues by deleting ~/.gconf
~/.gnome
~/.gnome2
like Nautilus not starting via dock icon and errors like.
g_key_file_load_from_file: assertion 'file != NULL' failed
nautilus atk-bridge: get_device_events_reply: unknown signature
nautilus Could not obtain desktop path or name
But I'm still running into other little issues like
- Totem not playing videos. Application starts, but it's like on permanent pause.
- VLC no sound
I've tried all of the methods in How do I reset GNOME to the defaults? but the issue still persists.
Any other thoughts?