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I have Asus ul20A and what I think is the newest netbook version of Ubuntu, and I can't seem to find a way to change my screen's brightness. It's a shame, because it takes hours off my battery life.

Googling offered an answer: Upgrade my BIOS to 210. The thing is, my computer doesn't have a CD slot. So How can I upgrade my BIOS, or is there another way to change my screen brightness?

I have already tried tweaking lines in grub and xbacklight, so they do nothing.

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This question appears to be abandoned, if you are experiencing a similar issue please ask a new question with details pertaining to your problem. If you feel this question is not abandoned, please flag the question explaining that. :) – jrg♦ Feb 24 '12 at 1:14

closed as too localized by desgua, jrg♦ Feb 24 '12 at 1:14

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, see the FAQ.

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This isn't even close to a complete answer, but this page on the kernel's team page might shed some light on figuring out the backlight problem:

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