Created attachment 178352 [details] A screenshot were you can see the observed result. SUMMARY I can't resize or move the area of my drawing tablet "One by Wacom" using the system settings. I can still resize and move the Screen area. The Tablet will behave as if the full drawing tablet area was selected. STEPS TO REPRODUCE 1. Plug in the "One by Wacom" drawing tablet 2. Open the Drawing Tablet module in the System Settings 3. The Tablet is always shown to have no Selected area a Ratio of "0% 0% 0% 0%" and no Resize area button. OBSERVED RESULT The drawing tablet Ratio shown is "0% 0% 0% 0%" and the Resize area button isn't there. This is the behaviour in all the "Map to screen" and "Mapped Area" options. In the attachment is a screenshot were you can see the result. Apply will result as if the full drawing tablet area was selected with the correct use of the Screen mapping. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Fedora Linux 40 KDE Plasma Version: 6.3.0 KDE Frameworks Version: 6.10.0 Qt Version: 6.8.0
The feature to change the input area of the tablet requires libinput 1.27. Unfortunately Fedora 40 only has 1.26.2. Of course the UI should handle this better though
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/2818
Git commit 15a93e777be4afacff1683135f651518cb7afb9a by Joshua Goins. Committed on 18/02/2025 at 13:06. Pushed by redstrate into branch 'master'. kcms/tablet: Fix appearance of input area if changing it is unsupported This feature is only supported on libinput >=1.27, but I forgot to re-test it using an older libinput and this bug slipped into 6.3. The source of the bug isn't immediately obvious, this is chalked up to intentional behavior in libkwindevices. If a property is reported as unsupported, then it default constructs a value (in this case, a QRectF.) But we don't want a default-constructed QRectF, we need a QRectF with a size of 1x1. FIXED-IN: 6.3.1 M +1 -1 kcms/libkwindevices/inputdevice.h https://invent.kde.org/plasma/plasma-desktop/-/commit/15a93e777be4afacff1683135f651518cb7afb9a
Git commit 0fe773bbec0d074eb86516a23762396e415d9fb9 by Joshua Goins. Committed on 18/02/2025 at 13:22. Pushed by redstrate into branch 'Plasma/6.3'. kcms/tablet: Fix appearance of input area if changing it is unsupported This feature is only supported on libinput >=1.27, but I forgot to re-test it using an older libinput and this bug slipped into 6.3. The source of the bug isn't immediately obvious, this is chalked up to intentional behavior in libkwindevices. If a property is reported as unsupported, then it default constructs a value (in this case, a QRectF.) But we don't want a default-constructed QRectF, we need a QRectF with a size of 1x1. FIXED-IN: 6.3.1 (cherry picked from commit 15a93e777be4afacff1683135f651518cb7afb9a) Co-authored-by: Joshua Goins <josh@redstrate.com> M +1 -1 kcms/libkwindevices/inputdevice.h https://invent.kde.org/plasma/plasma-desktop/-/commit/0fe773bbec0d074eb86516a23762396e415d9fb9