How can I leave the fullscreen mode of a citrix session and return to the host desktop (Ubuntu)?

I am using the Citrix Receiver for Linux package.


Two steps are needed for this.

  1. Press ctrl+F2 in the citrix session. This enables keyboard shortcuts from the host system (Ubuntu).

  2. Now you can use alt+tab to switch the focus to the application you used before opening citrix (or the desktop).

  • Thank you! Is there a shortcut to return the keyboard control to the Citrix session immediately? Aug 14 '19 at 13:04
  • This doesn't work for me Ubuntu 20x
    – RockSolid
    Jul 11 at 17:32

Just extending the answer as I've been recently dealing with the topic...

In Ubuntu 17.10 with ica-client 13.8

  1. As indicated above, ctrl+F2 enables passing key sequences to the host system for a few seconds. After a certain amount of time, keyboard shortcuts are passed back to the citrix desktop.

  2. alt+tab exactly as described above, i.e. switch focus to applications you were using before, but does not allow to switch/see the host Desktop (e.g. Gnome).

  3. If you need to launch new applications, you need access the Ubuntu desktop, which you can achieve with ctrl+super+D.

  4. During the ctrl+F2 time window, you may use any other shortcut, e.g. ctrl+alt+T will open a terminal.

  • 1
    I'm not sure what this adds to the existing accepted answer to the original question. The question isn't about Ubuntu keyboard shortcuts...
    – Elder Geek
    Feb 11 '18 at 21:16
  • Well... it would have saved me (probably a fairly thick bloke) some time, particularly how to get hold of the desktop. Note that in windows shift+f2 directly shows the desktop, which is not the case in Ubuntu, I was wrongly expecting the same behaviour. Happy about the moderator deleting it, if it's deemed useless... cheers! Feb 12 '18 at 22:54

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