did you hear sound from subwoofer for both left and right channel , or only from one channel
speaker-test -c2 -t wav -D hw:0,0 speaker-test -c4 -t wav -D hw:0,0 do you hear only low frequency from the subwoofer ? alc668 does not have any mono pin complex nor mono audio mixer for downmixing -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1302090 Title: Dell Alienware 14, Speaker sound output is mono until a headphone jack is plugged To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1302090/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
