I have a Wacom Intuos VT M tablet in a setting with two monitors (laptop + external). Under an up-to-date Ubuntu Focal running X, if I map the tablet to a single monitor it fails to map it more often than not. A reliable way of getting failure is first connecting the tablet via bluetooth and then via USB. The only way to revert to a correct behavior is reseting X (ALT+F2 r). This is necessary even after rebooting.
I've noticed that, when not working well, the problem is that Mutter sends the mapping data to the "Wacom Intuos BT M Pad pad" device, while it should be sending them to "Wacom Intuos BT M Pad stylus" (this is what it does when it works well).
Under Wayland it works well (well, the tablet buttons don't work under Wayland but this is unrelated).
I have a Wacom Intuos VT M tablet in a setting with two monitors (laptop + external). Under an up-to-date Ubuntu Focal running X, if I map the tablet to a single monitor it fails to map it more often than not. A reliable way of getting failure is first connecting the tablet via bluetooth and then via USB. The only way to revert to a correct behavior is reseting X (ALT+F2 r). This is necessary even after rebooting.
I've noticed that, when not working well, the problem is that Mutter sends the mapping data to the "Wacom Intuos BT M Pad pad" device, while it should be sending them to "Wacom Intuos BT M Pad stylus" (this is what it does when it works well).
Under Wayland it works well (well, the tablet buttons don't work under Wayland but this is unrelated).