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Old 04-28-2004, 10:00 AM   #1
LQ Newbie
Registered: Oct 2003
Location: Africa, Kenya, Nairobi
Distribution: red hat 9.0, 7.3 and mandrake 9.0
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mandrake 9.1 LCD brightness adjusting on laptop??

hi all. a newbie from Nairobi.

Way to go linux!!!!!!!


i recently installed mandrake 9.1 on a laptop but the LCD brightness does not seem to work. any help??? adjusting brightness is normally with the Fn + F1/F2 combo keys but this only works on windows. Sometimes the screen gets so bright that the only way to change it is by returning to win as i multiboot madrake, winxp and win2k. the laptop model is a hp compaq nx9005.
Tried installing hotkeys but nothing worked. I'm new to linux and i tried it on the mandrake control centre as i haven't yet discovered how to install software via the shell.

Old 04-28-2004, 10:43 AM   #2
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Registered: Mar 2004
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Just found this might help

"College is nothing more than a period of training in techniques for dealing with boredom."

Mike Stone on Norwegian Wood by Haruki Murakami (translation by Jay Rubin)
Old 04-29-2004, 12:27 PM   #3
Senior Member
Registered: Jul 2003
Location: Indiana
Distribution: Suse 6.0+, Mandrake 5.0-10.0, Redhat 6.0-9.0, Gentoo 1.2+, Gnoppix, Knoppix, Sabayon, Ubuntu 5.04+
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Odd, the screen buttons always worked fine on the compaq's I've installed suse on... maybe Mandrakes just a little bit crappy at acpi buttons.
Old 05-30-2004, 12:52 PM   #4
Registered: May 2004
Location: Italy
Distribution: Slackware
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Nx9005 and screen brightness

I've got a nx9005 too.
My screen brightness control keys work since I activated ACPI.
Now I use linux 2.6.6 kernel and acpi works fine on my nx9005 without applying kernel patches.
If you use older kernels probably you need to upgrade your kernel or patch it (
This two special keys work even without hotkeys.

You can find useful information on linux & nx9005 at

Old 10-05-2004, 03:06 PM   #5
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Registered: Oct 2004
Distribution: Mandrake 10
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I enabled ACPI in Mandrake 10 (kernel 2.6.3) and I can control lcd brightness via the hotkeys now. No need to patch or upgrade kernels.


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