http://git.kernel.org/?p=linux/kernel/git/tiwai/sound.git;a=commit;h=2df03514de41f3bbb5623f2e7f2bf594e49cb2ec
the patch add the pin fixup for the subwoofer at node 0x15 with sequence number 2 the driver won't support 5.1 since there are only two speaker mode 0x18 and 0x15 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/839800 Title: 5.1 built-in surround detected as 4.0 on Acer Aspire 8943G with ALC670 To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/839800/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs