I have a backlight Keyboard Banda k77. Recently I switched from Windows to Ubuntu 22 LTS version.
In windows, when I press scroll lock button. The backlight would turn on and off.
But after switching to Ubuntu, I realized that it's not working. I researched and tried so many methods.
Ex.
xmodmap -e "add mod3 = Scroll_Lock"
It didn't work,
Then I tried this code
Xset led 3
But I failed again and again. I tried so many other methods.
