Here is a new trick for you. Are you tired of screen brightness limit in Ubuntu?
Lets see how to set your own screen brightness limit inUbuntu.
1. Go to – Ubuntu Software Centre
2. search- Redshift.
Now Install redshift.
3. Now press= Ctrl+Alt+t to open terminal.
4.type code in below syntax:- gtk-redshift -t day-brightness:night-brightness
Example- gtk-redshift -t 6500:5500
In above code we set day brightness to 6500K and night brightness to 5500K.
You can run this command anytime yo change your screen brightness according to day or night.
Good Luck!!!!!!!.