https://bugs.kde.org/show_bug.cgi?id=497076
Bug ID: 497076
Summary: Multi-finger touchscreen gestures cause to enter a
bugged "selection box" state
Classification: Plasma
Product: plasmashell
Version: 6.2.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Desktop Containment
Assignee: plasma-b...@kde.org
Reporter: cameronsmith...@gmail.com
CC: notm...@gmail.com
Target Milestone: 1.0
SUMMARY
A very similar (though not identical) bug to
[482222](https://bugs.kde.org/show_bug.cgi?id=482222). When using 3-finger
gestures on a touchscreen device, some gestures are not handled gracefully and
the desktop enters a limbo state with a selection box permanently shown on
screen.
Marco Martin's excellent work on 482222 (as well as upstream work on Qt in
version 6.8.1 [here](https://bugreports.qt.io/browse/QTBUG-127821)) has made
this state slightly more difficult to enter. Unfortunately, it still very much
does exist and happens relatively frequently on my machine.
STEPS TO REPRODUCE
1. Open plasma desktop, do NOT start gestures on any open applications/widgets.
2. Begin 3 finger gestures on the desktop background in any direction
(overview, grid mode, left/right virtual desktop).
- *Often a common way I've found it happens more frequently is on gestures
with some slight spreading/unspreading of all three fingers through the motion.
Might just be unlucky/irrelevant.*
OBSERVED RESULT
Plasma inconsistently enters a limbo state in which:
- A selection box is shown permanently on the screen, even if the screen is no
longer touched.
- Optionally move the mouse/touchpad/trackpoint to see that the selection box
is also permanently fixed to the cursor as it moves without holding down the
RMB/LMB. This can only be removed by selecting a desktop icon or...
- Tap the screen once. The permanent selection box disappears, but the desktop
enters 'edit mode' even if the touch event is extremely brief.
EXPECTED RESULT
Gestures should work normally without triggering this state.
OS VERSIONS
Arch Linux
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel: 6.12.1-arch1-1
HARDWARE
Lenovo ThinkPad T480s (touchscreen)
Intel i5 CPU/IGPU 8th gen
16 Gb ram
ADDITIONAL INFORMATION
The previous history of the touchscreen gesture issues can be found
[here](https://discuss.kde.org/t/3-finger-gestures-on-touchscreen-bug/15956/11).
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