Cannot choose which display dock shows on

[Leo S.]

I have two monitors both connected to one graphics card. Dock is showing on both of them. I would like it to show only on the right side of the left monitor.

I go to "Settings > Appearance > Dock > Show on".
I select the left monitor from the menu.
I expect the dock to disappear from the right monitor and show on the left.
Instead the dock stays on both monitors.

To be spesific what seems to happen is that selecting other option, eg. AOC 27", from the menu makes the dock flash but the selection goes to "All displays". Then if I select AOC 27" again the selection goes to that but now the dock doesn't flash and it stays on both monitors.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-control-center 1:3.36.1-1ubuntu5
ProcVersionSignature: Ubuntu 5.4.0-28.32-generic 5.4.30
Uname: Linux 5.4.0-28-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Apr 29 09:31:59 2020
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2020-04-28 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

Looks like bug 1866088 covers this so let's use that.