I had the same symptoms. Try the changes to the code I made in pull request 95. It uses a newer Linux API to register the device, and libinput seems happy with it now, so it works in gimp and inkscape.
Can you add a feature to see the computer X-org display on tablet?
It’s difficulty to use the input device without I know the position
thats currently not possible. but you can make a screenshot of your pc and put it as background of gfxtablet - that may help a bit
Adding one line of code and a simple bash script I update the PC screeshot, fast by adb
what did y mean?
where had i ad an line of code - and what code?