mute multimedia button in macbook doesn't work

[mon]

Hi

The macbook has a button to mute sound. In gutsy up to date x86 the behaviour is to mute the master track, but I can still here sound through the speakers when playing music. If it muted the pcm track I think it would work. Where can I change this behaviour?

thanks

[mon (javiermon-deactivatedaccount)]

Using macbook core 2 duo

[Jérôme Guelfucci (jerome-guelfucci-deactivatedaccount)]

Thank you for your bug report. Could you please follow ?

[Jérôme Guelfucci (jerome-guelfucci-deactivatedaccount)]

Oups, https://wiki.ubuntu.com/LaptopTestingTeam/HotkeyResearch is missing between "follow" and "?" :)

[mon (javiermon-deactivatedaccount)]

The keycode is 0xa0, which is correct, the problem is that the wrong audio track is muted (master instead of pcm)

[Jérôme Guelfucci (jerome-guelfucci-deactivatedaccount)]

Thank you, I'm marking this as triaged.

[mon (javiermon-deactivatedaccount)]

Any ideas on how can I change the default track muted? this bug makes the multimedia keys useless.

[mon (javiermon-deactivatedaccount)]

dmidecode -s system-manufacturer:
Apple Computer, Inc.
dmidecode -s system-product-name:
MacBook2,1
dmidecode -s system-version:
1.0

[Jérôme Guelfucci (jerome-guelfucci-deactivatedaccount)]

Until it's fixed, you could ask for help on the support tracker : [WWW] https://answers.launchpad.net/ubuntu.

[David Balažic (xerces8)]

gutsy-7.10-dekstop (final release) live CD

same problem.
The button is detected, but the sound is not muted.

In the mixer (Volume Applet 2.20.0) I see that the Master channel is muted, but the sound still plays.
Even if I manually mute Master in the mixer, the sound is still playing.
If I mute the PCM channel, then it works (sound is not to be heared any more)

root@ubuntu:~# dmidecode -s system-manufacturer
Hewlett-Packard
root@ubuntu:~# dmidecode -s system-product-name
HP Compaq nw8440 (RH415EA#ABB)
root@ubuntu:~# dmidecode -s system-version
F.0F

the audio hardware (judging by mixer window) is :
HDA Intel (Alsa mixer)

the loaded kernel module is snd_hda_intel

[Launchpad Janitor (janitor)]

Beginning with the Hardy Heron 8.04 development cycle, all open Ubuntu kernel bugs need to be reported against the "linux" kernel package. We are automatically migrating this bug to the new "linux" package. However, development has already began for the upcoming Intrepid Ibex 8.10 release. It would be helpful if you could test the upcoming release and verify if this is still an issue - http://www.ubuntu.com/testing . If the issue still exists, please update this report by changing the Status of the "linux" task from "Incomplete" to "New". We appreciate your patience and understanding as we make this transition. Thanks!

[Launchpad Janitor (janitor)]

Per a decision made by the Ubuntu Kernel Team, bugs will longer be assigned to the ubuntu-kernel-team in Launchpad as part of the bug triage process. The ubuntu-kernel-team is being unassigned from this bug report. Refer to https://wiki.ubuntu.com/KernelTeamBugPolicies for more information. Thanks.