Good day @urosdjordjic,
With that setup again, and even if the pen is not working, launch the terminal and run the command
That command will list all usb devices connected to your PC. As the Kamvas has an USB cable, I understand that the touch/pen input will be managed by USB. In the screenshot I posted, the third line says “Pen Tablet”. That is my Huion W1409. Theoretically, you should see something similar, indicating that your touch/pen screen is there. If it’s not there, then might need to file a ticket.
If it’s there, that’s a first step. I’m presuming your pen does not need charging nor battery, so can be used 24/7 unless mine, as sometimes I forgot the pen’s battery drained out and of course I get no input whatsoever. If the touch/pen is there and not responding to pen movements, then will need to file a ticket.
In my case, I don’t get the click on tracker though I get clicks on Krita and other software.
Let us know how this is going.