Feedback on the Dell Inspiron N411Z

Asked by madvinegar on 2014-04-23

The brightness keys of the laptop worked just fine in 12.04, 12.10 and 13.04.
On 13.10 and 14.04 unfortunately the brightness keys do not work. I can adjust the brightness though via brightness settings.

More specifically, the brightness keys combination (Fn+F4 and Fn+F5) work in kernels 3.2, 3.5 and 3.8. They do not work in kernels 3.11 and 3.13. This means that if I install ubuntu 12.04.4 (with kernel 3.11) the brightness keys do not work.

Can you find out what is the problem? What do kernels 3.2, 3.5 and 3.8 contain that makes the brightness keys work, (that is not contained in kernels 3.11 and 3.13) ... ???

Any help will be appreciated.
Thank you.

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