I have same bug on Ubuntu 18.04. I use laptop and external monitor (AOC 27") "All displays" - works fine "Build in display" - shows dock on external monitor "AOC 27" - shows dock on laptop.
Also I noticed that this only appears when I select my external monitor as "Primary display" (Settings -> Devices -> Displays). So I think OS confuses "Primary display" with "Build in display" -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1866088 Title: Problems with the Dock setting of "Show on" in the Appearance tab Status in gnome-control-center package in Ubuntu: Confirmed Bug description: I use a laptop with external monitor in a dual display set-up. The "Screen Display" tab of Settings application correctly shows: Display 1 as the built-in display Display 2 as the external monitor If I go to the new "Appearance" tab I see that the Dock is set to display on the Built-in display but it is actually being displayed on the external monitor. If I change this setting to display on the external monitor it displays on the laptop's built-in display. Once set to "All displays" the setting can not be unset and the dock insists on being displayed on both the laptop's built-in display and the external monitor. I used the Dconf editor to set org.gnome.shell.extensions.dash-to-dock.multi-monitor to off to correct the problem although the settings application again shows that the dock is being displayed on the built-in display when in fact it is being shown on the external monitor. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-control-center 1:3.35.91-0ubuntu3 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 ApportVersion: 2.20.11-0ubuntu18 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Wed Mar 4 15:20:47 2020 InstallationDate: Installed on 2019-05-17 (292 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190517) SourcePackage: gnome-control-center UpgradeStatus: Upgraded to focal on 2019-11-08 (116 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1866088/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
