you have to turn off this switch since it allow signal send to analog device copy to digital device when this switch is on but it also disable you to use digital device
Simple mixer control 'IEC958 Default PCM',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] -- 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/1316728 Title: [System Product Name, Realtek ALC887, SPDIF Out, Internal] No sound at all Status in “alsa-driver” package in Ubuntu: New Bug description: system done outomatic upgrade sound works fine before the upgrade. /Jideck ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jasiek 1356 F.... pulseaudio /dev/snd/controlC0: jasiek 1356 F.... pulseaudio /dev/snd/pcmC0D1p: jasiek 1356 F...m pulseaudio CurrentDesktop: Unity Date: Tue May 6 17:14:32 2014 PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed Symptom_Card: Built-in Audio - HDA Intel Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jasiek 1356 F.... pulseaudio /dev/snd/controlC0: jasiek 1356 F.... pulseaudio /dev/snd/pcmC0D1p: jasiek 1356 F...m pulseaudio Symptom_Jack: SPDIF Out, Internal Symptom_Type: No sound at all Title: [System Product Name, Realtek ALC887, SPDIF Out, Internal] No sound at all UpgradeStatus: Upgraded to trusty on 2014-05-04 (2 days ago) dmi.bios.date: 04/14/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0901 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P5G41T-M LE dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0901:bd04/14/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5G41T-MLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1316728/+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

