I can't change the brightness on my screen via hotkeys or any other method. I'm stuck with low brightness which is very hard on my eyes during long periods in front of my laptop. Is there any working solution out there?
Give this a try:
Try installing the xbacklight package:
You can then adjust the settings from a terminal using commands found here.
To increase brightness by 20%:
Alternatively to decrease:
Or use the -set parameter to define the exact level:
If this works for you may want to add a new startup entry so it runs on boot. Open "Startup Applications" and add the following details:
Command: xbacklight -set 60
Click add and you are done! Hope this helps.