[Bug 613638] Re: Adjusting brightness broken after hibernate/suspend

[DieterVDW]

After some more research, found the following webpage:
http://www.thinkwiki.org/wiki/Category:W510

Solution:
Add following line to NVidia Device section in xorg.conf:
Option "RegistryDwords" "EnableBrightnessControl=1"

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Adjusting brightness broken after hibernate/suspend
https://bugs.launchpad.net/bugs/613638
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