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I have been advised to post this problem as a bug. Having used Ubuntu
12.04 for several years, I recently purchased a new laptop, an Acer
Aspire E1-531, and the screen brightness control doesn't work - with
12.04 or 13.10. When the slider is moved back and forth there is no
change - the screen remains on full brightness. Several helpful
suggestions to fix this have been provided via Launchpad, but none were
successful - hence listing the problem as a bug. My daughter has my
previous Dell laptop running 12.04 and the brightness works perfectly.
Ditto my Asus netbook. But NOT on my Aspire. Having Googled the problem
in search of a solution, I find many people with the same problem with
other machines.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
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Brightness control not working on Acer Aspire E1-531
https://bugs.launchpad.net/bugs/1266290
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