first of all i tried everything i found on internet and didn't get any result.

I have an ASUS Vivobook with AMD RADEON Graphics and I can not adjust the brightness on my laptop, neither with FN keys nor on settings.

The only thing that I have read about but couldn't do is upgrade my kernel. (I did it 2ice but I couldn't boot Ubuntu with the new Kernel).

Did anyone have the same issue?

Thank you in advance!