Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.8 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.8-rc3 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1609750 Title: Audio not working on Acer Chromebook R11 Status in linux: Unknown Status in linux package in Ubuntu: Incomplete Status in pulseaudio package in Ubuntu: New Bug description: Audio is not working at all on Acer Chromebook R11 (codename CYAN). It's a Intel Braswell platform. snd_hda_intel messages seem normal, but Pulseaudio does not detect sound hardware. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: pulseaudio 1:9.0-1.1ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15 Uname: Linux 4.4.0-33-generic x86_64 ApportVersion: 2.20.3-0ubuntu2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: Unity Date: Thu Aug 4 14:12:03 2016 InstallationDate: Installed on 2016-07-22 (13 days ago) InstallationMedia: PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. SourcePackage: pulseaudio Symptom: audio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/20/2016 dmi.bios.vendor: coreboot dmi.chassis.type: 3 dmi.chassis.vendor: GOOGLE dmi.modalias: dmi:bvncoreboot:bvr:bd05/20/2016:svnGOOGLE:pnCyan:pvr1.0:cvnGOOGLE:ct3:cvr: dmi.product.name: Cyan dmi.product.version: 1.0 dmi.sys.vendor: GOOGLE --- ApportVersion: 2.20.3-0ubuntu2 Architecture: amd64 AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/hwC0D2', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D3p', '/dev/snd/controlC0', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 HibernationDevice: RESUME=UUID=53fe7902-c347-4ff8-945d-a3e3de773a08 InstallationDate: Installed on 2016-07-22 (13 days ago) InstallationMedia: Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0a2a Intel Corp. Bus 001 Device 002: ID 0bda:57cf Realtek Semiconductor Corp. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: GOOGLE Cyan Package: linux-image-4.4.0-33-generic 4.4.0-33.52 PackageArchitecture: amd64 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-33-generic root=UUID=742e4082-264a-4459-93df-9ec07b41d5e8 ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.4.0-33-generic N/A linux-backports-modules-4.4.0-33-generic N/A linux-firmware 1.159 Tags: yakkety Uname: Linux 4.4.0-33-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 05/20/2016 dmi.bios.vendor: coreboot dmi.chassis.type: 3 dmi.chassis.vendor: GOOGLE dmi.modalias: dmi:bvncoreboot:bvr:bd05/20/2016:svnGOOGLE:pnCyan:pvr1.0:cvnGOOGLE:ct3:cvr: dmi.product.name: Cyan dmi.product.version: 1.0 dmi.sys.vendor: GOOGLE To manage notifications about this bug go to: https://bugs.launchpad.net/kernel/+bug/1609750/+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
