you are using old version of alsa driver if you still find the name is alc668 since the driver had rename alc668 on those dell computers to alc3661
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pci/hda?id=4b016931a997be59a2be0da3398985a19fdfa5be static struct alc_codec_rename_pci_table rename_pci_tbl[] = { + { 0x10ec0280, 0x1028, 0, "ALC3220" }, + { 0x10ec0282, 0x1028, 0, "ALC3221" }, + { 0x10ec0283, 0x1028, 0, "ALC3223" }, + { 0x10ec0292, 0x1028, 0, "ALC3226" }, + { 0x10ec0255, 0x1028, 0, "ALC3234" }, + { 0x10ec0668, 0x1028, 0, "ALC3661" }, + { } /* terminator */ +}; -- You received this bug notification because you are a member of Ubuntu Touch seeded 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/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
