Lenovo Thinkpad X1 Extreme Gen 3 Unable to Adjust Backlight after Upgrading to Linux 5.10

[TriMoon]

I just remembered a topic relating to backlight that you might want to check out:

Xrandr increase brightness in incraments

Hi, I recently installed manjaro with awesome wm, and it has worked great, apart from the brightness and volume keys. I did a lazy fix for the volume keys by adding a custom key shortcut to my rc.lua: awful.key({ modkey }, "=" function () awful.util.spawn("amixer -q sset Master 5%+") end, {description = "volume up (%5)", group = "volume"} This works for volume, but i wanted to do the same for Brghtness, i found that i can adjust brightness with xrandr --brigh…