Huion Kamvas 20 disconnecting on iMac
I've got a 2014 iMac with 32g RAM running the latest version of Catalina (10.15.5).
I've set up the tablet as the middle display in a 3-display desktop (in addition to a second monitor), and I've been able to work with the tablet on certain days. But on others the driver will say "device disconnected" and I'll receive a "no signal" message on the tablet screen. It will function as a drawing tablet (i.e. I can move the cursor around on my iMac's screen) but no image shows on the tablet itself.
I've turned the tablet off and on again, I've uninstalled and re-installed the two latest versions of the driver, I've restarted my computer and turned the tablet on at various stages of booting up... Nothing seems to fix the issue for long.
When it's working, I have no issues, but right now it seems like a total crap-shoot whether the tablet works or not, no matter what I do. If anyone has any suggestions, they would be greatly appreciated!