https://bugs.kde.org/show_bug.cgi?id=430324
Bug ID: 430324
Summary: Support for libinput backend missing, touch feature
tweaks and mapping not good on xf86-input-wacom
Product: wacomtablet
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: jazzv...@gmail.com
Reporter: ra...@raghukamath.com
Target Milestone: ---
SUMMARY
Currently the wacom kcm is dependent on the xf86-input-wacom. Libinput supports
the tablet well now a days but there is no support to use libinput as backend.
While xf86-input-wacom is good, it fails miserably when the tablet has touch
and guesture support. The settings is not enough to make it work properly for
example two finger or three finger tap to right click doesn't work.
Where as libinput handles the touch events as touchpad and offers better
experience. But there is one problem in using it. There is no KCM to map the
tablet area to screen so if your monitor has 16:9 ratio and the tablet has
16:10 working area the perfect circles you draw will be ellipse
Going forward when we will switch to wayland, we won;t be able to use
xf86-input-wacom, so it is better to adapt to libinput and port the KCM to it.
There is already some volunteer work on this here -
https://invent.kde.org/matthews/kcm-tablet
I contacted the author and they imported their repo to KDE invent. They say
that some of their MR for some missing features in kwin are ignored. I would
request the developers to look into it.
Here is one of the MR -
https://invent.kde.org/plasma/kwin/-/merge_requests/251#note_103011
STEPS TO REPRODUCE
1. Uninstall xf86-input-wacom or open plasma settings under wayland
2. There will be no kcm to configure your tablet.
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