As far as I can tell, ALSA is working just fine. The problem is only with Pulseaudio.
After restarting Pulseaudio with Xonar U7 attached I've got the "Xoanar U7 Digital (S/PDIF)" choice in the Audio configuration, but this choice actually selects Analog Output (no signal on digital S/PDIF output, and the sound is going through analog connectors). The disconnect message in the quoted above dmesg is related to my experiments with attaching and detaching the USB card. It is normal behaviour. The apparent problems with unsupported "ctl value" does not affect the functionality of the card in ALSA. (FYI: I've added "ignore_ctl_error=1" to snd-usb-audio options in modprobe.d/alsa-base.conf to make alsamixer work) Please, let me know what else I can do to help sort this out. -- 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/1498129 Title: Asus Xonar U7 S/PDIF output not recognized by pulseaudio Status in alsa-driver package in Ubuntu: Incomplete Bug description: The external USB audio card Asus Xonar U7 is capable of both analog and digital output. ALSA name for the digital (S/PDIF) output is hw:1,1, and it is listed in aplay -l output, and aplay can output to it: aplay -D plughw:1,1 sample.wav. So, direct alsa sound works fine. However, pulseadio does not recognize the digital output of Xonar U7, it offers only analog output. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: pulseaudio 1:4.0-0ubuntu11.1 ProcVersionSignature: Ubuntu 3.13.0-63.103-lowlatency 3.13.11-ckt25 Uname: Linux 3.13.0-63-lowlatency i686 ApportVersion: 2.14.1-0ubuntu3.13 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: aoand 3756 F.... pulseaudio /dev/snd/controlC0: aoand 3756 F.... pulseaudio CurrentDesktop: Unity Date: Mon Sep 21 21:29:54 2015 EcryptfsInUse: Yes InstallationDate: Installed on 2011-02-20 (1674 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007.1) SourcePackage: pulseaudio UpgradeStatus: Upgraded to trusty on 2014-05-19 (490 days ago) dmi.bios.date: 11/29/2012 dmi.bios.vendor: LENOVO dmi.bios.version: 7WET71WW (3.21 ) dmi.board.name: 7448CTO dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvr7WET71WW(3.21):bd11/29/2012:svnLENOVO:pn7448CTO:pvrThinkPadX200Tablet:rvnLENOVO:rn7448CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 7448CTO dmi.product.version: ThinkPad X200 Tablet dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1498129/+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
