How to make Ubuntu friends with laptop brightness?

Question

ubuntu

I have a budget asus laptop. Previously, it had Windows. I put Ubuntu next to it, and there was a problem that only Windows could control the brightness of the laptop, Ubuntu could not. What brightness is left from the Windows session - this will be in Ubuntu. Then the tumor was excised and the brightness can no longer be controlled. And sobs-to the question because of what it is and how to fix it?

Answer 1

1. Install drivers for your video card. Usually they can be found along with instructions for installing in Linux on the official website
2. google "ubuntu laptop model", probably your problem has already been solved and you can use the experience of other people.

Answer 2

It helps me
where XX is a number in hexadecimal form from 00 to FF

Answer 3

I think it's worth starting with https://wiki.ubuntu.com/Kernel/Debugging/Backlight
And from the forums on ubuntu.ru
I had a similar problem, I decided to edit the X files.