https://bugs.kde.org/show_bug.cgi?id=464751
Bug ID: 464751
Summary: GUI not compatible with multiple kbd_backlight's
Classification: Plasma
Product: Powerdevil
Version: 5.26.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: w...@tuxedocomputers.com
CC: m...@ratijas.tk
Target Milestone: ---
SUMMARY
When using the keyboard backlight brightness slider in the kcm or the tray
menu, only one arbitrary selected /sys/class/leds/*kbd_backlight* entry is
controlled. Propably not the intended one when there are multiples.
STEPS TO REPRODUCE
1. have more then one /sys/class/leds/*kbd_backlight* entry (e.g. a keyboard
with a left, center, and right control zone)
2. slide the settings slider
OBSERVED RESULT
only one of the kbd_backlight is altered
EXPECTED RESULT
all kbd_backlight are adjustet or there is a way to select which oen should be
adjusted
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kernel 5.15, Plasma 5.26.5
ADDITIONAL INFORMATION
I'm currently implementing a /sys/class/leds driver for a per key rgb and a 3
zone rgb keyboard
On the 3 zone keyboard, druing boot the kbd_backlight device is set to 50%, but
the slider in the tray controls kbd_backlight_2 after boot (the driver
resisters kbd_backlight, kbd_backlight_1, kbd_backlight_2)
On the per key keyboard there is kbd_backlight - kbd_backlight_125 (some are
not connected to physical leds and are just reserved in the rgb controller,
however i resiter them anyway for future proofing)
Here the slider controlls kbd_backlight_59 (did not pay attention if any
kbd_backlight is set to 50% after boot, but can look that up if relevant)
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