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My pressing Fn+F4 multiple times, my keyboard back light level is set to 0 (off), 1, 2, 3, 4, 5 (brightest) and back to 0.
Every time the laptop is resumed from hibernate or sleep, the keyboard back light level is set to 1.
It stays that way until I switch it off manually. Even when the lid is closed it stays on.
Is there a way to make the back light turn off automatically? Even a scheduled job that switches it off every few minutes would be good.
Running showkey, displays codes for most of the Fn key combinations. It shows nothing for Fn+F4 combination.
How could this be solved?
Edit:
systemctl show upower.service | grep ProtectKernelTunables
shows
ProtectKernelTunables=no
Running
dbus-send --type=method_call --print-reply=literal --system --dest='org.freedesktop.UPower' '/org/freedesktop/UPower/KbdBacklight' 'org.freedesktop.UPower.KbdBacklight.SetBrightness' int32:3
Returns
Error org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.UPower.KbdBacklight” on object at path /org/freedesktop/UPower/KbdBacklight
Running
journalctl |grep upowerd |grep kbd
Returns nothing
Last edited by issues (2020-09-13 08:52:03)
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