I've just bought a touch pen, it's one of those with a battery inside, doesn't pair via bluetooth. It's simply turned on or off and, when it's on, it should work on a touchscreen. It works flawlessly on my android phone, but I can't say the same when using it on my gnome, as you can see:
These should be straight lines. When I use my fingers, I get a much better result.
Is there any configuration I can do on my pc so to make the pen work smoothly as it is on my phone...?
echo $XDG_SESSION_TYPE
?