https://bugs.kde.org/show_bug.cgi?id=408001
Bug ID: 408001
Summary: Mouse jumps on autohidden panel when xinput property
"Coordinate Transformation Matrix" is changed
Product: plasmashell
Version: 5.15.5
Platform: Archlinux Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Panel
Assignee: plasma-b...@kde.org
Reporter: andre+...@lianse.eu
Target Milestone: 1.0
Created attachment 120346
--> https://bugs.kde.org/attachment.cgi?id=120346&action=edit
screen record showing the bug in effect
SUMMARY
When xinput property "Coordinate Transformation Matrix" of a mouse is changed
to "2 0 0 0 2 0 0 0 1", mouse x and y movement is "accelerated" as expected.
But when the pointer is moved over a auto hidden panel, the pointer gets
shifted by a double the distance it is currently away from top/left edge
STEPS TO REPRODUCE
1. in current KDE session
2. add pannel, set visibility to "auto hide"
3. open a shell
4. get list of input devices: xinput list
5. get list of properties of a selceted mouse: xinput list-props <DEVID>
6. set "Coordinate Transformation Matrix" on mouse: input set-prop <DEVID>
<ATTRID> 2 0 0 0 2 0 0 0 1
7. move pointer on the panel and out again.
(1 0 0 0 1 0 0 0 1 reverts step 6)
OBSERVED RESULT
on left/right edge panels pointer gets moved down, on bottom/top panels it gets
moved right
EXPECTED RESULT
Mouse comes in exectly at the same spot, it was moved on the edge.
SOFTWARE/OS VERSIONS
KDE Plasma Version: 5.15.5
KDE Frameworks Version: 5.58
Qt Version: 5.12.3
Xorg-X11 1.20.4
xinput 1.6.2
ADDITIONAL INFORMATION
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