On my Macbook Pro Ubuntu alsways boots with…
- keyboard brightness at maximum illumination
- screen brightness at maximum illumination
…both which I need almost never during normal usage.
Instead of directly manipulating configuration files, I'm thinking
of a solution that would work like a script and set both brightness
settings to a lower default. How might this be accomplished?
Unfortunately, I have no experience in scripting and would be glad if you can help me out here.
I've figured out what needs to be done to change both the screen brightness and the keyboard backlight. Can you help be to make this a script that is automatically run at login?
Change Keyboard backlight
echo 130 | sudo tee -a /sys/class/leds/smc::kbd_backlight/brightness
…where 255 is the maximum brightness and 0 is the lowest brightness.
Change screen brightness
echo 42311 | sudo tee /sys/class/backlight/gmux_backlight/brightness
…where 4126 is the lowest brightness and 82311 the hightest.
I've noticed a another problem.. If I run
echo 42311 | sudo tee /sys/class/backlight/gmux_backlight/brightness right after login, but then use the brightness buttons. The screen brightness settings first reset to maximum – and then the change get's applied.
This is seems messed up…