Public bug reported: I'm running Ubuntu 12.04 on an FS Esprimo Mobile U9200 laptop that was completely muted by the kernel update from 3.2.0-10 to 3.2.0-11 last week. Using grub, I'm able to test between three installed kernel versions (3.2.0-10, -11 & -12), and pinpoint that audio works only on the earliest of those.
I've attached a screenshot of my System Settings > Sound > Output tab which displayed a "Built-in audio Analog Stereo" entry on 3.2.0-10 but now says "Dummy Output". I've also copied below the output of two commands mentioned on https://help.ubuntu.com/community/SoundTroubleshooting in case they are of any use. janne@esprimo:~$ sudo aplay -l [sudo] password for janne: **** List of PLAYBACK Hardware Devices **** janne@esprimo:~$ janne@esprimo:~$ lspci -v | grep -A7 -i "audio" 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03) Subsystem: Fujitsu Technology Solutions Device 110f Flags: bus master, fast devsel, latency 0, IRQ 47 Memory at fc400000 (64-bit, non-prefetchable) [size=16K] Capabilities: <access denied> Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-12-generic 3.2.0-12.21 ProcVersionSignature: Ubuntu 3.2.0-12.21-generic 3.2.2 Uname: Linux 3.2.0-12-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. AplayDevices: **** List of PLAYBACK Hardware Devices **** ApportVersion: 1.91-0ubuntu1 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xfc400000 irq 47' Mixer name : 'Realtek ALC262' Components : 'HDA:10ec0262,17340000,00100202' Controls : 0 Simple ctrls : 0 Card0.Amixer.values: Date: Thu Feb 2 22:08:24 2012 HibernationDevice: RESUME=UUID=e25a9774-6e0f-4713-8af6-1b7097134d5e InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MachineType: FUJITSU SIEMENS ESPRIMO Mobile U9200 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic root=UUID=581e3935-3397-4f0e-a558-5cfd1a8dbc36 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-12-generic N/A linux-backports-modules-3.2.0-12-generic N/A linux-firmware 1.68 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: yes SourcePackage: linux UpgradeStatus: Upgraded to precise on 2011-12-25 (39 days ago) dmi.bios.date: 02/27/2008 dmi.bios.vendor: Phoenix dmi.bios.version: 1.10 - 065 - 1566 dmi.board.name: S11D dmi.board.vendor: FUJITSU SIEMENS dmi.board.version: 1.0 dmi.chassis.asset.tag: FSC dmi.chassis.type: 10 dmi.chassis.vendor: FUJITSU SIEMENS dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnPhoenix:bvr1.10-065-1566:bd02/27/2008:svnFUJITSUSIEMENS:pnESPRIMOMobileU9200:pvr1.0:rvnFUJITSUSIEMENS:rnS11D:rvr1.0:cvnFUJITSUSIEMENS:ct10:cvr1.0: dmi.product.name: ESPRIMO Mobile U9200 dmi.product.version: 1.0 dmi.sys.vendor: FUJITSU SIEMENS ** Affects: linux (Ubuntu) Importance: Undecided Status: Confirmed ** Tags: amd64 apport-bug kernel-sound 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/925719 Title: Audio not working (no sound at all) since 3.2.0-11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/925719/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
