Public bug reported: This is a very irritating problem.
Symptoms : - Audio does not work on booting. I usually have to reboot to get it to work. - I have to fiddle with the audio volume to get it to work. Does not work everytime. If it does not work, i reboot again. - Audio starts to work and if I am playing music/ watching a movie/etc, it continues to work. However, if I pause for a few minutes - e.g. taking a lunch/dinner break, and come back, the audio does not work again. This is not an issue with the Bose hardware because: 1. I have a dual boot system, and I do not ever get this problem on windows. 2. If audio is not working, i can pull the usb out and put it in again to get it to work. I suspect - there is some usb keep awake issue. if there is no signal on the usb cable for sometime, it just dies and stops listening. I think other people are having the same problem. I had blogged about it a while back and got comments from other readers. You can read about it at http://vibhurishi.blogspot.in/2012/03/ubuntu-no-sound-fix-for-usb- audio.html . Its worse in Ubuntu 12.04 as I need to reboot or unplug/plug the usb cable. This is driving me nuts. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-27.43-generic-pae 3.2.21 Uname: Linux 3.2.0-27-generic-pae i686 NonfreeKernelModules: fglrx AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu12 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: vibhu 2170 F.... pulseaudio /dev/snd/controlC1: vibhu 2170 F.... pulseaudio /dev/snd/controlC0: vibhu 2170 F.... pulseaudio Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfe720000 irq 47' Mixer name : 'Realtek ALC888' Components : 'HDA:10ec0888,80860036,00100202' Controls : 42 Simple ctrls : 23 Card1.Amixer.info: Card hw:1 'Generic'/'HD-Audio Generic at 0xfe640000 irq 48' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 6 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Card2.Amixer.info: Card hw:2 'Audio'/'Bose Corporation Bose USB Audio at usb-0000:00:1a.0-1.1, full speed' Mixer name : 'USB Mixer' Components : 'USB05a7:1020' Controls : 2 Simple ctrls : 1 Card2.Amixer.values: Simple mixer control 'PCM',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 100 Mono: Playback 100 [100%] [0.00dB] [on] Date: Mon Aug 13 20:00:37 2012 InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) PackageArchitecture: all ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) LANG=en_IN SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Audio failed Symptom_Card: Bose USB Audio - Bose USB Audio Symptom_DevicesInUse: 2170 2170 2170 2170 vibhu F.... pulseaudio /dev/snd/pcmC2D0p: vibhu F...m pulseaudio /dev/snd/controlC1: vibhu F.... pulseaudio /dev/snd/controlC0: vibhu F.... pulseaudio Symptom_Type: No sound at all Title: [USB-Audio - Bose USB Audio, playback] No sound at all UpgradeStatus: Upgraded to precise on 2012-06-09 (65 days ago) dmi.bios.date: 12/06/2011 dmi.bios.vendor: Intel Corp. dmi.bios.version: TCIBX10H.86A.0048.2011.1206.1342 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: DH55PJ dmi.board.vendor: Intel Corporation dmi.board.version: AAE93812-303 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrTCIBX10H.86A.0048.2011.1206.1342:bd12/06/2011:svn:pn:pvr:rvnIntelCorporation:rnDH55PJ:rvrAAE93812-303:cvn:ct3:cvr: ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise running-unity -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1036221 Title: [USB-Audio - Bose USB Audio, playback] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1036221/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
