After I upgraded my notebook to ubuntu 12.04, I found that I can not save my power settings. Every time I set the screen brightness to 70%, it restored to 100% next time. I can't find a save button on the new power setting panel(I am sorry for I can not post a screenshot right now). Can anyone tell me how to save this setting? Thanks.
Power-Management – How to Save Brightness Settings
12.04power-management
Best Answer
if you just wana change and save the screen brightness only, you can use
xbacklight
after installing, type command to set the screen brightness easily
the
num
is percentage of your screen brightness.An easier way to set brightness and contrast
to set brightness,
00:02.0
is your VGA device code.XX
is hexadecimal form 00 to FFuse
lspci
command to find out your VGA device code.to set contrast,
X
from 0 to 1