https://bugs.kde.org/show_bug.cgi?id=479879
Bug ID: 479879
Summary: Keyboard brightness controls with stepped values
allows scrolling in between values
Classification: Plasma
Product: plasmashell
Version: 5.27.10
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Brightness Control
Assignee: plasma-b...@kde.org
Reporter: antti.s...@gmail.com
CC: natalie_clar...@yahoo.de
Target Milestone: 1.0
SUMMARY
Demonstrative video: https://youtu.be/k41rchftoWg
If you have a backlit keyboard like the one in Thinkpad T470s, its brightness
controls show up in the brightness control applet. The backlight is however
stepped as in it's either off, dim or full as the brightness control shows.
When dragging the slider with a mouse it works as expected but if you hover
over it and use the trackpad to scroll, the slider goes to in-between values.
This is purely cosmetic as it only affects the backlight when it hits one of
the steps.
STEPS TO REPRODUCE
1. Have a backlit keyboard with set brightness levels
2. Open the brightness control applet
3. Hover your mouse over the keyboard brightness controls and use mouse scroll
OBSERVED RESULT
The controls goes in-between the steps
EXPECTED RESULT
Scrolling should cause the control to hop to the next step
SOFTWARE/OS VERSIONS
Linux: Arch Linux
KDE Plasma Version: 5.27.10
KDE Frameworks Version: 5.114.0
Qt Version: 5.15.12
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