Comment 18 for bug 1700085

I also experience this problem.

OS: Ubuntu 20.04.1 LTS (fossa-bulbasaur X54)
External Monitor: 2k
Laptop Monitor: 4k

Display Config external + laptop screens: 2560x1440 + 1920x1200 (100% scaling)
Display Config only laptop screen: 3840x2400 (200% scale)

It happens when I switch from external monitor + laptop to just my laptop. The "display scale" goes to 200% or 100%

Duplication notes
1. start application while only using laptop then plug in external monitor (200% -> 100% scale): Cursor is HUGE
2. start application while both monitors are in use then unplug external monitor (100% -> 200% scale): Cursor is TINY
3. Restarting the app fixes the cursor size problem

Apps tested where bug **occurs**
"VSCode": YES. Restarting vscode fixes it
"Webstorm": YES. Restarting fixes it. Happens on multiple jetbrains products including "toolbox"
"Slack": YES. Restarting fixes it.
"Google Chrome": NO. I have a hunch google fixed it themselves or are immune
"Gedit": NO.
"Gnome Terminal": NO.