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#1 2021-07-30 19:25:05

archforthewin
Member
Registered: 2021-07-23
Posts: 23

Keyboard backlight does not work

Hey guys,

I have a Lenovo IdeaPad Flex 5 14alc05 and the backlight of my keyboard is permanently off, except when the Laptop starts up so it definitely works.

I have read the related Arch Wiki Article. The device is recognized and the brightness can be read out but it cannot be set from 0 to 1.

If I execute

echo 1 > /sys/class/leds/platform::kbd_backlight/brightness

as root the output of

cat /sys/class/leds/platform::kbd_backlight/brightness

is still 0.

I have tried the tool brightnessctl but it does not work either.

Does someone know why I can execute the first command without getting an error but the change does not take effect?

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