Currently the tablet test window shows stylus x/y coordinates and when the stylus enters/leaves. We could show more stuff there. Some things that come to mind are pressure/tilt values and stylus/pad button presses
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/2675
Git commit 4afc237537ce3a26e99b959f2f9b454f1db24f39 by Joshua Goins. Committed on 22/12/2024 at 18:21. Pushed by redstrate into branch 'master'. kcms/tablet: Add pressure information to the tablet tester M +8 -1 kcms/tablet/tabletevents.cpp M +1 -1 kcms/tablet/tabletevents.h M +3 -3 kcms/tablet/ui/Tester.qml https://invent.kde.org/plasma/plasma-desktop/-/commit/4afc237537ce3a26e99b959f2f9b454f1db24f39
Git commit 2efa091edbd9b96816573ae775b59c86b06f36fc by Joshua Goins. Committed on 22/12/2024 at 18:21. Pushed by redstrate into branch 'master'. kcms/tablet: Add tilt information to the tablet tester M +15 -1 kcms/tablet/tabletevents.cpp M +1 -1 kcms/tablet/tabletevents.h M +3 -3 kcms/tablet/ui/Tester.qml https://invent.kde.org/plasma/plasma-desktop/-/commit/2efa091edbd9b96816573ae775b59c86b06f36fc
A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/3097
Git commit ecb94acb56c592ea64a2a81d55dc944dacf25a42 by Joshua Goins. Committed on 07/07/2025 at 17:13. Pushed by redstrate into branch 'master'. kcms/tablet: Show tablet pad button events in the tester This allows users to view their (if bound to application-defined) pad buttons work as expected. M +9 -0 kcms/tablet/ui/Tester.qml https://invent.kde.org/plasma/plasma-desktop/-/commit/ecb94acb56c592ea64a2a81d55dc944dacf25a42
Git commit aba5d19a4edaf71ba367c23022175b5573cdd0d8 by Joshua Goins. Committed on 07/07/2025 at 17:13. Pushed by redstrate into branch 'master'. kcms/tablet: Show tablet pad dial events in the tester This allows users to view their (if bound to application-defined) pad dials work as expected. M +52 -1 kcms/tablet/tabletevents.cpp M +1 -0 kcms/tablet/tabletevents.h M +6 -0 kcms/tablet/ui/Tester.qml https://invent.kde.org/plasma/plasma-desktop/-/commit/aba5d19a4edaf71ba367c23022175b5573cdd0d8
Closing as the original report should be fully covered now.