In Mate 18.04 the super key opens the application Menu. I would like to disable this keybinding but I cannot find it neither in the keyboard shortcuts menu nor with dconf editor.
Super Key – How to Disable Super Key in Ubuntu-Mate 18.04
18.04mate
Related Solutions
You may use (GNOME) Tweaks to achieve your goal.
First install Tweaks by running
sudo apt install gnome-tweaks
(or sudo apt install gnome-tweak-tool).
Then launch Tweaks and go to "Keyboard & Mouse" section. Select "Right Super" for the "Overview Shortcut" option.
So far as I can tell there is no real way to disable it so we are going to reassign it using dconf editor.
First install dconf-tools
sudo apt-get install dconf-tools
then launch dconf editor. From there navigate to org -> gnome -> desktop -> wm -> keybindings
assign it to something innocuous that doesn't have a keybind yet which will be denoted with a []. Your new shortcut should look like
['<Super>F1']
then click the checkbox at the bottom and now the help menu should no longer appear when you hit that key. I know this isn't a solution to just disable it however it works none the less also note that this set of hotkeys is for desktop window management,
Best Answer
On my clean installation of Ubuntu MATE 18.04 LTS the following commands
disabled left Super / Win key:
If you want to get it back - the default value for both keys was
'Super_L'.