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Old 8th December 2011, 05:26 PM
juanfgs Offline
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Join Date: Mar 2008
Location: Entre Rios, Argentina
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macosmidori
Change brightness from command line?

Hi, I installed Fedora 16 on my laptop and managed to make it work with my intel video card (using acpi_osi=Linux as kernel parameter) however now it boots with extremely low brightness and I have to change it by pressing the brightness function keys. It's a minor nuisance but I would like to change it from command line and add it to an init script that makes it automatically.
I've already tried "echo -n 100 > /proc/acpi/video/VGA/LCD/brightness" but there is no VGA folder in proc and it fails. any suggestion?
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Old 8th December 2011, 09:22 PM
RupertPupkin Offline
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linuxfedorafirefox
Re: Change brightness from command line?

If you have the xorg-x11-server-utils package installed then you could do something like this:
Code:
xgamma -gamma 1.4
You can play around with different numbers to get the brightness you want: a number less than one makes it darker, a number greater than 1 makes it brighter.
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