you should able to see the red light in optical spdif jack if you turn on IEC958 Playback Switch
Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] refer to codec info of N55SF in https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/871808 misc bit (bit 8) of the pin default of 0x1e is set to indicate no jack detection ( driver don't enable unsol event the jack detection) Pin Default 0x99430120: [Fixed] SPDIF Out at Int ATAPI Conn = ATAPI, Color = Unknown this pin default is really represent the intel desktop S/PDIF header http://www.intel.com/support/motherboards/desktop/sb/CS-032871.htm S/PDIF header pin-outs Intel® Desktop Boards use either a 4-pin or 3-pin S/PDIF header but those ASUS with sonic master seem support optical out with a combo headphone jack but neither node 0x06 nor node 0x10 have Amp-Out Node 0x06 [Audio Output] wcaps 0x611: Stereo Digital Node 0x10 [Audio Output] wcaps 0x611: Stereo Digital so there won't be any volume control even the subwoofer is using digital output Node 0x1e [Pin Complex] wcaps 0x400780: Mono Digital Pincap 0x00000014: OUT Detect Pin Default 0x99430120: [Fixed] SPDIF Out at Int ATAPI Conn = ATAPI, Color = Unknown DefAssociation = 0x2, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x40: OUT Unsolicited: tag=00, enabled=0 Power states: D0 D1 D2 D3 EPSS Power: setting=D0, actual=D0 Connection: 1 0x06 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1040873 Title: [N56VZ, Realtek ALC663, Black Headphone Out, Right] No sound at all: Subwoofer not working To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1040873/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
