xgamma just changes the gamma, which may not be noticeable on things that
are predominantly black and white. Here are a few suggestions that will
set actual brightness:
xbacklight =[some-value]
xvattr -a XV_BRIGHTNESS -v [some-value]
These may not work on all systems, but will probably work on most
laptops. See man pages for further information on these commands.
Received on Thu Mar 05 2009 - 23:17:42 UTC
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