I recently installed Ubuntu Mate on my Legion 5 laptop and when was trying it out from flash drive. The screen brightness control worked I was excited because it hasn’t worked since I first switched to linux. After I did a full install everything but the screen brightness worked perfectly. So how do I get it to work again?
There’s a lot of approaches to adjusting brightness so if one doesn’t work another one will. Worst-case you’ll be just setting a shortcut to run a script.
I personally don’t know what’s missing between those two but if you want a quick solution installing
xbacklight often works.
sudo apt install xbacklight # Increase brightness 10% xbacklight -inc 10 # Decrease brightness 10% xbacklight -dec 10 # Open keyboard shortcuts and apply the commands to the appropriate keys
Thank you I will give it a try