I recently updated to Ubuntu 20.04 LTS, in my Dell XPS 13. I connected an external monitor and used it as the primary monitor. And initially, the dock was in the external monitor only. Then I went to the Settings > Appearance. And changes the show on to All displays. I tried turning it back to the external display, but it is not changing.
I tried restarting, and to change the setting, but nothing works. I just want to keep my laptop's built-in monitor clean without the dock.
