https://bugs.kde.org/show_bug.cgi?id=498937
Bug ID: 498937
Summary: Wacom Cintiq 22HD Pen/Touch Tablet on Fedora 41 KDE
Plasma 6.2.5: pen input not working & calibration
creates display glitch
Classification: I don't know
Product: kde
Version: unspecified
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: junksmith...@gmail.com
Target Milestone: ---
Created attachment 177558
--> https://bugs.kde.org/attachment.cgi?id=177558&action=edit
Page 1 is normal calibratoin screen, page 2 is the glitch when the cursor is
hovered over
SUMMARY
In the past 2-6 weeks (possibly coinciding with an update), my Wacom Cintiq
22HD pen/touch tablet has not been functioning properly in KDE Plasma. I boot
my Fedora 41 OS in Gnome, and it works properly - but when I boot into the
Plasma 6.2.5 environment, there are issues. In Plasma, the pen input does not
seem to move the cursor (or if it does, the cursor stays in an invisible corner
of the screen and does not move with pen input, therefore it gives the illusion
that the cursor is not responding). Moreover, the calibration option in System
Settings > Drawing Tablet > Calbrate seems to have a display glitch (attached
images) when the cursor is hovered over the window (previously via pen, now via
mouse). I've noticed that this glitch seems to disappear transiently when using
the print screen function (Spectacle), or by shifting the calibration window to
another monitor (windows + shift + left/right arrow); when the window is placed
again on the Wacom tablet's display and the cursor hovers over the window, the
glitch comes back. For this reason, the attached images had to be taken via
phone camera, and not digitally screenshotted.
Also, no crash or error code appears when this process is done, so I'm not sure
what further information I could provide.
STEPS TO REPRODUCE
Pen input not working properly
1. On booting in Fedora 41 KDE Plasma (6.2.5), the Wacom pen input simply does
not work. It works if botted in Fedora 41 Gnome, but not in KDE
Calibration display glitching
1. Boot Fedora 41 KDE Plasma.
2. Enter system settings > drawing tablet > calibrate
3. The calibration window should open on the Wacom tablet display; if on
another monitor, move it to the wacom display using (windows + shift + arrow
keys).
4. Hover the cursor over the calibration window. Previously done using the pen
input, but now done using the mouse input now that the pen input does not seem
to move the cursor. Regardless of moving the cursor via pen or mouse, the same
display glitch occurs
5. The glitch temporarily goes away when using the print screen function
(Spectacle) or moving the calibration window to another screen (windows + shift
+ left/right arrows). The glitch will return when hovering the cursor over the
calibration window. Of note, the calibration window does not respond the pen or
mouse clicks (therefore the calibration process is effectively stuck, although
the crosshair may light up if hovered over).
OBSERVED RESULT
Pen input not working properly: The cursor does not seem to move with the pen
input
Calibration display glitching: the display output on the calibration window has
the attached visual glitch and does not proceed with the calibration process
(the crosshair may light up if hovered over, but the calibration process does
not seem to move forward with mouse clicks).
EXPECTED RESULT
Pen input not working properly: The cursor should move with the pen input, and
also click accordingly.
Calibration display glitching: the display output on the calibration window
should not have a display glitch and should proceed as intended with pen
inputs.
SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: Fedora 41 / KDE Plasma 6.2.5
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
Kernel Version: 6.12.9-200.fc41.x86_64 (64-bit)
Graphics Platform: Wayland
Processor: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 46.1 GiB of RAM
Graphics Processor: AMD Radeon RX 6700 XT
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