I have a usb audio device that i was using regularly and suddenly stopped being recognized. The system can't even identify its ID's anymore (ID ffff:fffe).
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1227149 Title: USB audio sound card not recognized after update to Linux 3.12-rc1-saucy Status in alsa-driver package in Ubuntu: Confirmed Bug description: Not sure where this report should go, I think it concerns the Linux kernel 3.12-rc1-saucy from http://kernel.ubuntu.com/~kernel- ppa/mainline/ After installing above mentioned kernel (switching from 3.11.1) I can no longer use my USB sound card. (It is an external D/A converter and speaker amplifier.) The sound settings dialog only lists "Dummy Output". (My onboard soundcard is disabled in BIOS.) Dmesg: usb 1-1.1.2: new full-speed USB device number 13 using ehci-pci usb 1-1.1.2: New USB device found, idVendor=08bb, idProduct=2706 usb 1-1.1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 usb 1-1.1.2: Product: USB Audio DAC usb 1-1.1.2: Manufacturer: Burr-Brown from TI input: Burr-Brown from TI USB Audio DAC as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.1/1-1.1.2/1-1.1.2:1.2/input/input9 hid-generic 0003:08BB:2706.0007: input,hidraw4: USB HID v1.00 Device [Burr-Brown from TI USB Audio DAC ] on usb-0000:00:1a.0-1.1.2/input2 snd_usb_audio: `-2' invalid for parameter `index' and /etc/modprobe.d/alsa-base.conf indeed does have this line: options snd-usb-audio index=-2 The kernel apparently sees my USB amplifier, but it is not listed in the Sound settings, even though there is no other sound device present. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 Uname: Linux 3.12.0-031200rc1-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.3 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Date: Wed Sep 18 15:14:53 2013 InstallationDate: Installed on 2012-11-02 (319 days ago) InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5) MarkForUpload: True PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Title: USB sound card not detected UpgradeStatus: Upgraded to raring on 2013-09-01 (16 days ago) dmi.bios.date: 08/22/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: F14 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z77X-UD5H dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF14:bd08/22/2012:svnGigabyteTechnologyCo.,Ltd.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnGigabyteTechnologyCo.,Ltd.:rnZ77X-UD5H:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: Gigabyte Technology Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1227149/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
