FWIW I'm not using pulseaudio, so no pactl here. 2.1 works fine since the discovery of the subwoofer pin.
Attached are the requested alsa-info.sh outputs. Not sure about what you mean if the subwoofer needs both left and right channel: If it's that if I could use the subwoofer alone without the speakers, that's doable, it's just a matter of muting "Speaker" and leave "Bass Speaker" on, and then I have output just from the subwoofer. If it's that if I can control left and right channels for the subwoofer itself, I can, using the hda_analyzer at the node 0x1a, under the output amplifier group "Val[0]" seems to mute a half of the subwoofer and "Val[1]" mutes the other, seriously I don't know how that happens, I always assumed the subwoofer to be a single speaker, but there it is. As an additional note, the subwoofer is tied up to the Audio Mixer at node 0x0e (Attached hda_analyzer screenshot as well for it), muting "Val[0]" mutes all left output (as in Speakers, Subwoofer) and "Val[1]" does the same but with the right channel. Thanks again. ** Attachment added: "alsa-info.unplugged-mono.txt" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+attachment/4087687/+files/alsa-info.unplugged-mono.txt -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1302090 Title: Dell Alienware 14, Speaker sound output is mono until a headphone jack is plugged Status in “alsa-driver” package in Ubuntu: New Bug description: Here's the required release and package information: Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 Package: linux-image-extra-3.13.0-19-generic Version: 3.13.0-19.40 When playing audio through speakers on my Alienware 14 2014, the sound output is in mono until I plug a headphone in any of the two available headphone jacks (obviously, the auto-mute option must be disabled). When I do so, the sound starts to play in stereo. I would love the sound output to be stereo by default and not be forced to plug anything to achieve that. Attached is the alsa-info.sh output for my machine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
