What is the best way to install the EnableBrightnessControl fix if
xorg.conf doesn't exist (a common situation now)? I tried creating
xorg.conf as
Section "Device"
Identifier "Configured Video Device"
Driver "fbdev"
Option "RegistryDwords" "EnableBrightnessControl=1"
EndSection
with material copied from xorg.conf.failsafe but that didn't have any
effect.
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https://bugs.launchpad.net/bugs/540112
Title:
Can not change LCD brightness on Lenovo Y450 laptop
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