Can't adjust screen brightness from anywhere. Nor by specific buttons on the laptop keyboard, nor by setting in "brightness and lock"
I've tried to configure the grub file like it mentioned in a lot of instruction, but noe success.
When I'm pressing the brigtness buttons on a keyboard I get a bar appeard on screen but there's only two positions and no any actual brightness changes (((
Unfrtunately couldn't attache images due to lack of reputation (
Do somebody knows how to fix it ?
Thanks in avdvance.