- First, install the Extensions tool (
gnome-shell-extension-prefs), load it up and disable the "Ubuntu Dock" extension if it is not already disabled. - Reset the configuration settings of Ubuntu Dock to the factory defaults with the following terminal command:
dconf reset -f /org/gnome/shell/extensions/dash-to-dock/ - (Likely not needed, but to make sure: log out then back in)
- Reenable Ubuntu Dock in the "Extensions" tool. If you do not see Ubuntu Dock in the tool, try restarting first.
This will reset your personal dock configurations. An issue with the current configuration is most likely causing the problems. Ubuntu Dock is derived from the Dash to Dock extension, and shares the same configuration settings.
If problems persist, then there may be an issue at the system level. Then attempt a reinstall of the dock:
- Remove with the command
sudo apt purge gnome-shell-extension-ubuntu-dock. This will likely also remove the ubuntu-desktop metapackage. Likely not needed, but you could reboot now to be sure. - Reinstall ubuntu-desktop:
sudo apt install ubuntu-desktop. This will pull Ubuntu Dock back in - If the event ubuntu-dock does not appear in the desktop environment, restart the system.