CMI8738 is not well-supported by alsa. Running with a center channel volume issue (center volume constant, whatever the master volume).
I found out that master volume worked only for front/rear channel, not center which stick to its initial value. Pulseaudio volume for separate channel are not effectless. amixer set no gauge for center/lfe, hence impossible to change it. Seems that with this chip, when in 5.1 mic is not available and Mic-in and center/lfe is on the same control. I don't know if alsa is wrong or if CMI8738 is just a crap. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-utils in Ubuntu. https://bugs.launchpad.net/bugs/104617 Title: CMI8738 5.1 center speaker is mute Status in alsa-utils package in Ubuntu: Invalid Bug description: Binary package hint: gnome-media I've spent the past couple of days researching this on the internet. I have a soundcard with the CMI8738 chipset, on a desktop running Ubuntu Edgy. In 5.1 mode all works, except the center-speaker (the subwoofer works, but not the center speaker) I can't see a separate control for the center speaker, only for Master and PCM. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/104617/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
