Ubuntu

Dell Inspiron 640m/E1405: changing brightness by hotkey doesn't work anymore

Bug #70758 reported by Oliver
22
Affects Status Importance Assigned to Milestone
Ubuntu
Fix Released
Undecided
Unassigned

Bug Description

Hi,
I'm using Edgy (since RC1) on my 640m, recently I updatet to Bios version A05.
I'm not 100% sure that it has something to do with the Bios-update.
Anyway, since then i can't change the Display brightness with the Hotkey Fn+UP | Fn+Down
The funnny thing is when i come back from hibernate, the keys work !!! but the hibernate hotkey don't work anymore ( Fn+F1 ), i can still go to hibernate by choosing it in the logoff/turnoff dialog.

thx for your help
soliver84

Report as described at https://wiki.ubuntu.com/LaptopTestingTeam/HotkeyResearch

1. Fn+UP | Fn+Down -> Brightness up | Brightness down

2. Method 1
         FN+UP 0xd4
         FN+DOWN don't work
    Method 2
         FN+UP don't work
         FN+DOWN don't work
    Method 3
         FN+UP
[Tue Nov 7 15:06:28 2006] received event "video LCD 00000086 00000000"
[Tue Nov 7 15:06:28 2006] notifying client 4206[105:109]
[Tue Nov 7 15:06:28 2006] notifying client 4059[0:0]
[Tue Nov 7 15:06:28 2006] completed event "video LCD 00000086 00000000"
         FN+DOWN don't work

3. Dell Inc
    MXC061
    Not Specified

Revision history for this message
Oliver (lobohacks) wrote :

He
Just tried it with my dapper and edgy life cds.
The Hotkeys work in dapper !
So it must be a edgy issue !
Something must have changed between RC1 and Final that causes this bug.

Revision history for this message
revfrthumos (revborghardt) wrote :

Brightness keys (Fn+UP and Fn+Down) do not work in Edgy with Dell Inspiron 9400 with ATI 1400x.

Revision history for this message
Insp9400nv7900 (utrdsbnhgx107y) wrote :

Hello
I have the same problem :
Brightness keys (Fn+UP and Fn+Down) do not work in ubuntu 6.10.
When I do that, the session is starting again to log in screen.
My configuration :
Dell Inspiron 9400 with nvidia 7900GS
BIOS upgraded from MP061A02 to MP061A04

Revision history for this message
Erik Andrén (erik-andren) wrote :

I can confirm this bug on a Dell C640. Definitely a regression since Dapper. The problem is: In which package?

Revision history for this message
Erik Andrén (erik-andren) wrote :

A workaround that works for me is to switch a console, where the brightness-keys just work fine.

Revision history for this message
Andreas Warberg (andreas-warberg) wrote :

This is a problem on Dell Inspiron 6400 as well.

I've installed 915resolution to fix the resolution so I suspect this might be the culprit but I didn't test the keys before, unfortunately.

Regards
Andreas

Revision history for this message
Juan Pablo Salazar Bertín (snifer) wrote :

try this: http://<email address hidden>/msg03696.html

Revision history for this message
Maxime Chéramy (maxime81) wrote :

Here on 6400 the keys don't work.
I don't know if it's due to my bios update.

Revision history for this message
Erik Andrén (erik-andren) wrote :

I cannot reproduce this anymore using feisty current.

Revision history for this message
Oliver (lobohacks) wrote :

For me Feisty fixes this bug to.
thx

Revision history for this message
Erik Andrén (erik-andren) wrote :

Works in feisty.

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