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Keyboard Backlight not working.
Posted: 2024-01-11 18:31
by caltoffel
Hi, new Debian user here.
Lenovo ThinkPad X280 20KES8D300 running Debian 12 (Plasma, idk if important). I cannot get my keyboard backlight to work in any capacity (apart from mic mute, caps lock etc.)
Fn+Space does nothing.
xset does nothing maybe because of wayland.
There is no config file related to keyboard in /sys/class/leds
Any help is greatly appreciated.
-cal
Re: Keyboard Backlight not working.
Posted: 2024-01-11 19:17
by bbbhltz
Hi,
I've had this problem but never solved it. Now my current laptop doesn't have that feature.
I do remember trying the following:
Turn on the lights:
If nothing happens check if
brightnessctl is installed and check for the device name:
Re: Keyboard Backlight not working.
Posted: 2024-01-11 19:43
by caltoffel
Thank you for the speedy reply,
xset does nothing.
brightnessctl output is this:
cal@Tomato:~$ brightnessctl -l
Available devices:
Device 'intel_backlight' of class 'backlight':
Current brightness: 152 (10%)
Max brightness: 1515
Device 'platform::mute' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 1
Device 'phy0-led' of class 'leds':
Current brightness: 1 (100%)
Max brightness: 1
Device 'tpacpi::thinklight' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 1
Device 'tpacpi::power' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 255
Device 'input0::scrolllock' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 1
Device 'input0::capslock' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 1
Device 'tpacpi::lid_logo_dot' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 255
Device 'tpacpi::standby' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 255
Device 'input0::numlock' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 1
Device 'tpacpi::thinkvantage' of class 'leds':
Current brightness: 0 (0%)
Max brightness: 255
Device 'platform::micmute' of class 'leds':
Current brightness: 1 (100%)
Max brightness: 1
Is there any way to reconfigure the thinkvantage (I do not have that button) config file to make it act as the config file for the keyboard light? The max brightness suggests it might be possible?
All LED's work besides keyboard backlight.
Re: Keyboard Backlight not working.
Posted: 2024-01-11 19:59
by bbbhltz
Does
Fn + Space
do anything?
I don't have a model that has a backlit keyboard and I'm using Gnome for the moment, so I am out of ideas now. Good luck!
Re: Keyboard Backlight not working.
Posted: 2024-01-11 20:05
by caltoffel
No. Fn + Space does nothing.
I also doubt that a ThinkPad with a Touchscreen and LTE, which also has backlight markings on the space bar, would be missing the hardware for some reason.
Keyboard part number is 01YP052.
Re: Keyboard Backlight not working.
Posted: 2024-02-08 12:47
by cgecastro
Try creating a new user and check if that helps. I had a similar problem and it was due to a corupted setting somewere