dv2000 brightness after hardy update

[David Bentolila]

Description: Ubuntu hardy (development branch)
Release: 8.04
Notebook: dv2000
Graphic Video: GeForce 7200

My brightness control (Fn + (F7/F8) ) was work fine before update (I've installed ubuntu hardy on 13/04/2008) and update approximately 230 MB, after reboot my brightness control dosen't work.

Meu controle de brilho (Fn + (F7/F8) estava funcionando bem antes do update (instalei o ubuntu hardy no dia 13/04/2008) e atualizei aproximadamente 230 MB, depois de reiniciar o controle de brilho não funcionou.

[David Bentolila (davidbentolila)]

This bug happens in the kernel 2.6.24.16, because the version that came in hardy beta ( 2.6.24.12 ) the brightness still working (tested today)! fix it, please, already passed by it in feisty ...

[David Bentolila (davidbentolila)]

look that don't have a video folder in /proc/acpi

root@bentolila:/proc/acpi# ls
ac_adapter button event info sleep
alarm dsdt fadt power_resource thermal_zone
battery embedded_controller fan processor wakeup

[Ronai (ronaiml-yahoo)]

I have the same problem.

By xev ( using Gnome ) the keycode are 101 (FN+F7) and 212 (FN+F8), but did not work.
There is the file /proc/acpi/video/VGA/LCD/brightness and is possible change the brightness from
echo command or my script in attachment.

In previous beta kernel the brightness key working very well, but in last version not work anymore.
My last version was installed from online upgrade.

[Klebson Porfirio (klebsonp)]

I have the same problem with Ubuntu Hardy on Compaq Presario C720BR...
when was with Gutsy worked fine.

[Ronai (ronaiml-yahoo)]

I solve it. You can see the post

http://ubuntuforums.org/showthread.php?t=673946

or in Portuguese

http://ubuntuforum-br.org/index.php/topic,36300.0.html

The script is in attachment.

[Leann Ogasawara (leannogasawara)]

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

[Ralph Janke (txwikinger)]

The Intrepid Ibex 8.10 Beta release was most recently announced - http://www.ubuntu.com/testing/intrepid/beta . It contains the 2.6.27 Ubuntu kernel. It would be great if you could test and verify if this is still an issue. The status is being set to Incomplete until we receive further feedback. Thanks.

[Ronai (ronaiml-yahoo)]

Hi Ralg,

On the last kernel update of the Hardy 8.04 the brightness control woks.
The Beta 8.10 works too.

Thank you.
R Lisboa

Ralph Janke wrote:
> The Intrepid Ibex 8.10 Beta release was most recently announced -
> http://www.ubuntu.com/testing/intrepid/beta . It contains the 2.6.27
> Ubuntu kernel. It would be great if you could test and verify if this
> is still an issue. The status is being set to Incomplete until we
> receive further feedback. Thanks.
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
>

[Leann Ogasawara (leannogasawara)]

Marking this "Fix Released" per the last comment. David, since you are the original bug reporter, if this is not resolved for you with Intrepid feel free to reopen by setting the status back to "New".

[Marco Bisaccioni (marco-bisaccioni)]

Description: Ubuntu Intrepid
Release: 8.10 version 64 bit
Notebook: HP Pavilion dv9000

Before this last update (kernel 2.6.27-11 tonight updated 2009-01-09) the brightness control (Fn + (F7/F8) ) was work fine. Now I have to start my notebook with Windows for setting the brightness e reboot to linux to have a normal video light.
Any suggestion?