I want to hotkey certain often used brightness settings under ctrl+ F7 through F10. I can already change it with the therminal. To be able to do this I ran the following command
chmod 666 /sys/class/backlight/intel_backlight/brightness
After that I was able to change it with
echo <value I want> > /sys/class/backlight/intel_backlight/brightness
(You might need to change "intel_backlight" to whatever vendor you have.)
After that worked I went to "System Settings -> Keyboard -> Custom Shortcuts" and added a custom shortcut with the following values
Name = lowest brightness
Command = echo 1 > /sys/class/backlight/intel_backlight/brightness
and I set it run with ctrl + F7 but when I press ctrl + F7 nothing happens (
outputs the same value it had before pressing ctrl + F7)
Making a little script that executes these commands and setting that to a hotkey also didn't work (executing it with a therminal did work)
How do I fix this?
ps. my grub file has one a little alteration to make the brightness function keys work.
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor dell_laptop.backlight=0"
but I can't use the function keys to reach the desired values