https://bugs.kde.org/show_bug.cgi?id=460644
Bug ID: 460644
Summary: Mouse cursor Acceleration profile reset upon
disconnect
Classification: Applications
Product: systemsettings
Version: 5.24.4
Platform: OpenSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_mouse
Assignee: plasma-b...@kde.org
Reporter: ad...@joeysun.com
Target Milestone: ---
SUMMARY
***
When a mouse is disconnected and reconnected, the acceleration profile is reset
as "Adaptive", but is still shown as "Flat".
***
STEPS TO REPRODUCE
1. Have a mouse connected and set to "Flat" profile
2. Disconnect mouse
3. Reconnect mouse
OBSERVED RESULT
The pointer's acceleration profile clearly feels like "Adaptive", but the
change is not shown in the settings dialogue. No difference, if the settings
were closed inbetween or not. In order to restore normal function, one must set
the profile to "Adaptive", click "Apply", set it back to "Flat" and click
"Apply" again.
EXPECTED RESULT
The selected acceleration Profile should be applied to all new devices upon
connection.
SOFTWARE/OS VERSIONS
Windows: -
macOS: -
Linux/KDE Plasma: Release 15.4 / Kernel 5.14.21-150400.24.18-default (64-bit)
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
This also happens, when a machine is resumed from standby and the mouse is
connected via hubs (i.e. mouse -> usb socket on keyboard -> usb hub -> host).
This is pure speculation, but it might be a result of the host needing to wake
up the hubs before the mouse is seen and initialized again.
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