Is there a keybind to minimize all windows, without a toggle?

It can be found in System--->Preferences--->Keyboard shortcuts

alt text

This person found a way to do what you are looking for: http://www.cs.bgu.ac.il/~gwiener/linux/minimizing-all-windows-in-gnome/

First install devilspie
```
sudo apt-get install devilspie
```
Then create a file called minimize.ds in your home folder. In that file put the following:
```
(begin
  (minimize)
  (quit))
```
Test it out by running: devilspie minimize.ds
If it works as it should then add a shortcut: System ➜ Preferences ➜ Keyboard Shortcuts.

Click on the Add button and fill in the fields as shown below, replacing YOURUSERNAME with your actual username.

And finally double-click where it says Disabled and press your shortcut keys.

Ctrl+Alt+D? You can set it in Gnome System->Preferences

Related