volume control - command executed twice with Fn+F9/10/11 and boot parameters "acpi_osi=Linux acpi_backlight=vendor"

[laurent]

Binary package hint: kdemultimedia

1) I use Kubuntu 10.10 Maverick
2) I have Kmix 4:4.5.1-0ubuntu1 installed
3) On my Asus EEE PC 1201N, i have Fn-Keys to control the volume. This worked pretty fine, until I changed the boot parameters to "acpi_osi=Linux acpi_backlight=vendor", but what is necessary for the touchpad and wlan keys to work properly.
4) With those boot parameters, the volume control keypresses are executed twice. so basically, if you want to mute the sound for example, it is muted and unmuted in one step. Other combinations work pretty fine, like (for me now) with the Windows key+F10-12. However, the Fn combinations then don't work anymore.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: kmix 4:4.5.1-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.35-22.35-generic 2.6.35.4
Uname: Linux 2.6.35-22-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Wed Nov 10 09:21:24 2010
InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcEnviron:
 LANGUAGE=
 LANG=de_LU.UTF-8
 SHELL=/bin/bash
SourcePackage: kdemultimedia