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rated 0 times [  4] [ 0]  / answers: 1 / hits: 1954  / 8 Months ago, fri, february 24, 2023, 5:25:43

My laptop's screen brightness is auto set to maximum at login (= at the login screen already).

Even after I have adjusted it to lower it is again set to maximum after annother login. Is there a way to save the previous brightness settings in Ubuntu 12.04?

Additional Info by gentmatt:

This definitely seems to be related to the used graphics.

  • When using the discrete graphics, the brightness is set to maximum on every boot.

  • When using the integrated graphics, the brightness setting which Mac OS X has set is used.

    But Ubuntu does not change that setting. It uses the stored setting by OS X. Therefore, the brightness at login is only changed, when OS X changes the brightness.

More From » 12.04


A possible solution:

xbacklight -set 80

to the file


This will set the backlight to the desired value (80) whenever X is started.
.xinitrc is the configuration file responsible for the X-Server.

[#40820] Saturday, February 25, 2023, 8 Months  [reply] [flag answer]
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