Sound Preferences provide insufficient detail for macbook on Karmic

[Jens Geiregat]

I upgraded to Karmic Alpha recently and played around with its (new?) Sound Preferences dialog. I noticed the audio was no longer as loud as it used to be and searched for controls for the different channels. (My macbook has some kind of 'center' speaker.) I could not find it anywhere in the GUI.

After several hours I found a workaround: running 'alsamixer -c 0' in a terminal gave me an alsamixer with sufficient controls to unmute my middle speaker and get back the sound I had in Jaunty.

[Adil Arif (adisari06)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. In order to assign this bug to the right package, do you know whether pulseaudio saw that channel? I don't know whether this is a volume control or a pulseaudio problem. Thanks!

[Jens Geiregat (jens-geiregat)]

Pulseaudio did not see that channel as far as I know. My Sound Preferences dialog no longer shows my hardware anymore now too... See the attached screenshot.

[Adil Arif (adisari06)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Judging from your description, I am going to assign this bug to the pulseaudio package in hopes that it will have a faster response. If you believe that I have chosen the wrong package, please change your bug to the correct one. Good luck on getting it fixed!

[Xavi (xavidp)]

I had a similar problem on MacBookPro 5.5, but after the upgrade with latest packages from mactel repositories yesterday (Oct. 9th) , now I can see again the type of hardware under the sound preferences interface, but not sound yet by any means. Sound level was risen higher enough (or maximum) in all possible settings for sound, but no sound.

[Xavi (xavidp)]

Fixed by installing gnome-alsmixer, and through its interface, unmute the front speaker. According to the sound mixer interface, everything was unmuted in theory (but not sound). With gnome-alsamixer (and using alsa-driver-unstable-snapshot) I got sound again working.

[Gorka Navarrete (emrys)]

The necessary switches should appear by default in the sound preferences screen. This is quite important for an substantial number of users.

[Daniel T Chen (crimsun)]

This isn't a PulseAudio bug. Please change this bug to affect gnome-media.

On Nov 6, 2009 10:12 AM, "Gorka Navarrete" <email address hidden> wrote:

The necessary switches should appear by default in the sound preferences
screen. This is quite important for an substantial number of users.

** Changed in: pulseaudio (Ubuntu)
      Status: Incomplete => Confirmed

-- Sound Preferences provide insufficient detail for macbook on Karmic
https://bugs.launchpad.net/...
Status in “pulseaudio” package in Ubuntu: Confirmed

Bug description: I upgraded to Karmic Alpha recently and played around with
its (new?) Sound Prefer...