HP 6735s Brightness hotkey problem; where is brightness panel?

Posted by Paul on Ask Ubuntu See other posts from Ask Ubuntu or by Paul
Published on 2012-03-21T19:48:58Z Indexed on 2012/03/21 23:40 UTC
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11.10

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brightness

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acpi

I have installed ubuntu 11.10 on my laptop hp 6735s. The screen is often too dark and i want to make it brighter, although the hotkeys Fn+F7/F8 are not working.

I have tried some things:

Firstly it appears that sometimes they are in fact working, after reboot they either work and continue to do so or they don't.
I've read about a brightness applet; but where can i find or install it?
I have tried some grub options; acpi_osi=Linux and acpi_backlight=vendor but nothing changes.
I don't want to add another question but since it might be related: my laptop also gets quite hot, i'm having doubts whether ubuntu connects to the available sensors and cooling plans (or how does it work???); sensors (or psensor) only shows 2 sensors both named temp1.

Any help is greatly appreciated!

Paul

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