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 Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/104617 Title: CMI8738 5.1 center speaker is mute To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/104617/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
