Comments on: LCD brightness keys not working in Kubuntu Gutsy

By: hpd1000member

hpd1000member — Mon, 17 Aug 2009 19:14:37 +0000

how does it work?

By: Sava

Sava — Thu, 30 Apr 2009 02:04:35 +0000

For those of you who hasn’t got this working:

Make sure the path

/proc/acpi/video/VID/LCD/brightness

is correct on your system. For example, the instruction reads:

/proc/acpi/video/VGA/LCD/brightness

while my Ubuntu/DellXPS has:

/proc/acpi/video/VID/LCD/brightness (note VGA vs VID)

Simply open Terminal, and then cd /proc/acpi/video/ then tab for it to display what’s in there, and go with it.

You’ll also need to edit the lcdbryt.sh file, the last line

echo -n $current > /proc/acpi/video/VGA/LCD/brightness

to match that path as well. After that it should work flawlessly.

Thanks alot Mike,

By: Maged

Maged — Thu, 12 Feb 2009 21:00:53 +0000

Doesn’t work for me.
I’m on HP 6730s and Ubuntu 8.10

By: DV

DV — Sat, 18 Oct 2008 23:37:09 +0000

great, works perfect on Gateway MX6447 using ubuntu 8.04!

By: tamalatamala

tamalatamala — Sat, 11 Oct 2008 11:57:58 +0000

Doesn’t work for me. HP Compaq 6735b, AMD, on Kubuntu 8.04 Hardy

By: Dan

Dan — Mon, 29 Sep 2008 23:49:09 +0000

Works on Gateway MT6821 running Ubuntu 8.04 LTS

By: nicholas fellows

nicholas fellows — Mon, 25 Aug 2008 11:42:37 +0000

nailed … confirmed working on a Compaq Presario C700 running regular ubuntu (hardy heron)

By: Anzu

Anzu — Tue, 12 Aug 2008 07:16:33 +0000

works on pavilion dv6768se

By: Mike Lopez

Mike Lopez — Wed, 06 Aug 2008 15:14:15 +0000

Hi Dipti,

You execute the commands above one line at a time in the console/terminal. The terminal is akin to the Windows “DOS/Command Prompt”.

Mike

By: Dipti K

Dipti K — Wed, 06 Aug 2008 14:33:20 +0000

Hi all!
I’m a new convert from Windows and am using Ubuntu 8.04. I too use a HP-Compaq Presario V3000. I need some help in executing the directions mentioned above. I have downloaded the required file. What next?
-lost