Fn+ (F7|F8) which is for brightness decrease|increase is not working on
Ubuntu 8.04.1 LTS (Hardy Heron), which used to work fine with
Ubuntu 6.06.2 LTS (Dapper Drake) on Compaq Presario V3000 (V3018TU)

Message from icon in panel reads:
"cannot get laptop panel brightness"

Is there any solution?

Thanks,

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On Thu, 24 Jul 2008 23:11:25 +0530
H.S.Rai <hardeep.rai@gmail.com> wrote:

> Fn+ (F7|F8) which is for brightness decrease|increase is not working on
> Ubuntu 8.04.1 LTS (Hardy Heron), which used to work fine with
> Ubuntu 6.06.2 LTS (Dapper Drake) on Compaq Presario V3000 (V3018TU)
>
> Message from icon in panel reads:
> "cannot get laptop panel brightness"
>
> Is there any solution?
>
> Thanks,
>
> --
> H.S.Rai
>

I don't have an answer, but you might check if there is any bug report
and if not, file one. That sounds like it should have been carried into
Hardy.

good luck,

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Charlie Kravetz
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H.S.Rai said the following on 07/24/2008 01:41 PM:
> Fn+ (F7|F8) which is for brightness decrease|increase is not working on
> Ubuntu 8.04.1 LTS (Hardy Heron), which used to work fine with
> Ubuntu 6.06.2 LTS (Dapper Drake) on Compaq Presario V3000 (V3018TU)
>
> Message from icon in panel reads:
> "cannot get laptop panel brightness"
>
> Is there any solution?
>
> Thanks,
>
> --
> H.S.Rai
>
>
I have a different computer from yours, but it may work the same.
See
http://www.linuxscrew.com/2007/10/25/ajust-lcd-brightness-from-command-line-works-at-dell-1501/#comment-3898


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Hi all,





I've installed Lenny 64 on a Dell M1530 using the net install method (laptop and standard) and then installing:





x-window-system-core


gnome-desktop-environment





For some reason gnome desktop power manager is unable to control the screen brightness nor does it dim when on battery.





To test further I created a Lenny gnome live usb stick and tested. When
using the usb stick everything appears to work as expected suggesting
something might be missing from my install.





Can anyone advise what I might have missed in the install?





Thanks




PS If I use Fn and brightness control keys this does change the
screen brightness but the gnome indicator does not show a moving bar.

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On Wed, Feb 18, 2009 at 02:24:04PM +0000, Lalit Dhiri wrote:

> To test further I created a Lenny gnome live usb stick and tested. When
> using the usb stick everything appears to work as expected suggesting
> something might be missing from my install.
>
> Can anyone advise what I might have missed in the install?

Do a 'dpkg --get-selections > a' on the usb-stick installation and
'dpkg --get-selections > b' on your normal installation and compare them
using either diff, sdiff or comm.

Regards
Johann

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----------------------------------------
> Date: Thu, 19 Feb 2009 09:21:22 +0200
> From: jspies@sun.ac.za
> To: debian-user@lists.debian.org
> Subject: Re: Brightness Control
>
> On Wed, Feb 18, 2009 at 02:24:04PM +0000, Lalit Dhiri wrote:
>
>> To test further I created a Lenny gnome live usb stick and tested. When
>> using the usb stick everything appears to work as expected suggesting
>> something might be missing from my install.
>>
>> Can anyone advise what I might have missed in the install?
>
> Do a 'dpkg --get-selections> a' on the usb-stick installation and
> 'dpkg --get-selections> b' on your normal installation and compare them
> using either diff, sdiff or comm.
>
> Regards
> Johann


Yes thanks I already did a selection compare with the Live USB packages using diff / sdiff and could not find anything that I thought would make a difference.

The issue has however, been fixed by adding the user account to the powerdev group.

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