you have not set node 0x1a to speaker in /sys/class/sound/hwC1D0/user_pin_configs:
/sys/class/sound/hwC1D0/init_pin_configs: 0x12 0x99a30140 0x14 0x90170110 0x15 0x0321101f 0x16 0x03211020 0x18 0x40030008 0x19 0x03a11030 0x1a 0x411111f0 0x1b 0x411111f0 0x1d 0x41000001 0x1e 0x411111f0 0x1f 0x411111f0 /sys/class/sound/hwC1D0/driver_pin_configs: /sys/class/sound/hwC1D0/user_pin_configs: 0x12 0x99a30140 0x14 0x90170110 0x15 0x0321101f 0x16 0x03211020 0x18 0x40030008 0x19 0x03a11030 0x1a 0x411111f0 0x1b 0x411111f0 0x1d 0x41000001 0x1e 0x411111f0 0x1f 0x411111f0 -- 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: Confirmed 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 : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
