I am using the android emulator on Linux Kubuntu 20.04.
Whenever I hit some keyboard sequence (I am not sure what it is but it probably has to do with ctrl+alt+right), I get a weird graphic with 3 teal circles and a line. Once that graphic displayed, I can no get rid of it, and it even persists when I changed to a different virtual desktops or minimize the emulator.
What is this graphic and how do I prevent it / get rid of it?
Hit the zoom button (twice?) for a temporarily fix.
For a permanent fix enable (or disable I cant remember) Settings > General > Send Keyboard Shortcuts to Virtual Device.
This graphic is the multi-touch functionality of the emulator. It's presented to you - assuming you are using the default emulator from android studio - for a mac user by holding the command button, and for windows/linux I think it is alt button while left clicking with your mouse.
You can use this functionality for actions such as pinching or any other functionality for which you'd require multiple inputs.
Not sure in your case why it doesn't go away though, as it works fine for me.
In my personal experience, I usually trigger this when I'm trying to take a screenshot with shortcuts, so to prevent this just click on something other than the emulator before taking one
