Public bug reported: Sound is available after booting but goes away after 5-120 minutes. Sound failure does not appear to be associated with anything other than the passage of time.
This problem appeared after I ran an upgrade on 2013-05-18 which affected 82 packages, notably alsa-utils:i386 (1.0.25-1ubuntu5, 1.0.25-1ubuntu5.2), libasound2:i386 (1.0.25-1ubuntu10.1, 1.0.25-1ubuntu10.2), Previously the system had worked flawlessly for many months. Thank you. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: alsa-base 1.0.25+dfsg-0ubuntu1.1 ProcVersionSignature: Ubuntu 3.2.0-44.69-generic-pae 3.2.44 Uname: Linux 3.2.0-44-generic-pae i686 NonfreeKernelModules: fglrx AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu17.2 Architecture: i386 Card0.Amixer.info: Card hw:0 'Generic'/'HD-Audio Generic at 0xfeb44000 irq 44' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 6 Simple ctrls : 1 Card0.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] Card1.Amixer.info: Card hw:1 'SB'/'HDA ATI SB at 0xfeb40000 irq 16' Mixer name : 'Realtek ALC887-VD' Components : 'HDA:10ec0887,10ec0887,00100302' Controls : 45 Simple ctrls : 21 Date: Sat May 25 11:04:56 2013 InstallationMedia: Mythbuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012) MarkForUpload: True PackageArchitecture: all ProcEnviron: TERM=cygwin PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_Card: Built-in Audio - HD-Audio Generic Symptom_Jack: Digital Out, HDMI Symptom_Type: Sound works for a while, then breaks Title: [MS-7698, ATI R6xx HDMI, Digital Out, HDMI] fails after a while UpgradeStatus: Upgraded to precise on 2012-05-18 (372 days ago) dmi.bios.date: 03/14/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V1.4 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: E350IA-E45 (MS-7698) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.4:bd03/14/2011:svnMSI:pnMS-7698:pvr1.0:rvnMSI:rnE350IA-E45(MS-7698):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7698 dmi.product.version: 1.0 dmi.sys.vendor: MSI ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1184178 Title: [MS-7698, ATI R6xx HDMI, Digital Out, HDMI] fails after a while To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1184178/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs