Huion Kamvas Pro 20 (2019)
When I plugged for the very first time my Huion Kamvas Pro 20 (2019) it was ok for a few minutes until I switched from "Duplicate" option to "Wide" screen on my laptop. Suddenly it started to blink non stop. The minute I unplugged it'd stop blinking, and viceverse. I can't even change it to "Duplicate" option now!