I have a XP-Pen Deco MW connected to my computer via bluetooth. I have installed the pentablet software from the manufacture's website. Now, if I start the pentablet app, it tells me that I need to connect the device. It already is connected, though. I can also move the mouse using it. I just cannot change any settings as the app does not find the tablet.
I can work around it by connecting the tablet using a cable, but I would need to use the cable all the time as otherwise the settings wouldn't stay applied.
Here's my xinput. First one is using bluetooth, second one is while connected via cable:
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ XP-PEN MOUSE id=24 [slave pointer (2)]
⎜ ↳ Deco MW Mouse id=16 [slave pointer (2)]
⎜ ↳ Deco MW Pen (0) id=28 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ XP-PEN ERASER id=23 [slave keyboard (3)]
↳ XP-PEN STYLUS id=25 [slave keyboard (3)]
↳ Deco MW Keyboard id=26 [slave keyboard (3)]
↳ Deco MW id=27 [slave keyboard (3)]
$ xinput
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ XP-PEN MOUSE id=24 [slave pointer (2)]
⎜ ↳ Hanvon Ugee Deco MW Mouse id=26 [slave pointer (2)]
⎜ ↳ XP-PEN STYLUS Pen (0) id=28 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ Power Button id=7 [slave keyboard (3)]
↳ XP-PEN ERASER id=23 [slave keyboard (3)]
↳ XP-PEN STYLUS id=25 [slave keyboard (3)]
↳ Hanvon Ugee Deco MW Keyboard id=16 [slave keyboard (3)]
↳ Hanvon Ugee Deco MW id=27 [slave keyboard (3)]
I'm on Ubuntu 22.04