Ubuntu 20.04.2 Guest went invisible

Discussions related to using VirtualBox on Mac OS X hosts.
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Nap
Posts: 30
Joined: 22. Jul 2014, 02:06

Ubuntu 20.04.2 Guest went invisible

Post by Nap »

[MacBook Pro 2014, MacOS Catalina 10.15.6, VirtualBox Version 6.1.22 r144080 (Qt5.6.3)]

Whilst using my Ubuntu 20.04.2 LTS install, I accidentally hit CMD-C instead of CTRL-C a few times (not in quick succession except to undo the mistake each time). This of course toggled the view.
After a few of these mistakes, the guest's border went invisible, i.e.the close/minimise/maximise buttons disappeared, and the border was gone. When I started to close applications, getting ready to shut-down, I noticed that the entire window (border and desktop) was not invisible, including the desktop toolbar and dock.
The mouse however knows it's over the desktop because because the cursor changes, but as soon as I make a click, the click is registered by the MacOS host (and the cursor changes to a Mac cursor).
Not sure what caused this, but it's weird.
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