Public bug reported: I have an external sound card--A Topping VX2. When plugged in to USB, the device seems to keep Ubuntu from booting properly. It hangs until I remove the USB cord from the device, then Ubuntu boots normally.
Once booted, the device can be recognized by Ubuntu, but then seems to nuke PulseAudio, leaving no devices in the Sound Settings. Yes, I have checked this behavior against two Topping VX2 devices, which have identical results. Yes, I have switched out USB cords to test for a bad cord. The VX2 uses Via Technologies VT 1620A USB audio controller. I suspect that this may be the issue. Is this currently supported? Is there a working driver for this? THanks. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: pulseaudio 1:6.0-0ubuntu13 ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4 Uname: Linux 4.2.0-34-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: Unity Date: Mon Mar 21 15:27:54 2016 InstallationDate: Installed on 2016-03-15 (6 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Daemon not responding. SourcePackage: pulseaudio Symptom: audio Symptom_Card: USB-Audio - C-Media USB Audio Device Title: [USB-Audio - VX2, playback] Pulseaudio fails to detect card UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/26/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2101 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: X99-A dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2101:bd11/26/2015:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnX99-A:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: All Series dmi.product.version: System Version dmi.sys.vendor: ASUS ** Affects: pulseaudio (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug wily -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560181 Title: [USB-Audio - VX2, playback] Pulseaudio fails to detect card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1560181/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs