I have just installed Elementary OS 5.0 and surprised how good it is! There is one annoying thing which is the backlight not working. I have tried different solutions that seemed to have worked for others but not for me.
What I have tried:
sudo xmodmap -e 'add mod3 = Scroll_Lock'
xset led 3
- update grub file:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=video"