Public bug reported: On upgrade to 17.04, my webcam stopped properly working, in the sense that when video chatting with others, they hear a chipmunk-like noise. I used the word chipmunk because I saw this:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/858412 This issue happens with every video chat application I've tried: hangout (chrome), viber, also cheese. I went through some Ubuntu wiki page about fixing sound issues which made "cheese" record once ok after some force- reset of audio, but not the second time (some crashes seemed to happen as well, where the audio was completely disabled globally until restart). I know the above is not very precise, so here's what I can tell for sure: When video chatting, the audio from my logitech webcam (C210) sounds like a chipmunk after I upgraded to Ubuntu 17.04. This is with the 4.10 kernel. If I boot the same Ubuntu with kernel 4.8 (leftover from Ubuntu 16.10), it works correctly! The above experiments suggest that there is nothing wrong with my config files or package installation. But that it's a regression in the kernel/drivers. ProblemType: Bug DistroRelease: Ubuntu 17.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.10.0-26.30-generic 4.10.17 Uname: Linux 4.10.0-26-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC2: sciabaz 1860 F.... pulseaudio /dev/snd/controlC1: sciabaz 1860 F.... pulseaudio /dev/snd/controlC0: sciabaz 1860 F.... pulseaudio CurrentDesktop: Unity:Unity7 Date: Sun Jul 9 18:58:57 2017 InstallationDate: Installed on 2017-04-23 (76 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaRecordingTest: ALSA recording test through plughw:U0x46d0x819 failed Symptom_Card: Webcam C210 - USB Device 0x46d:0x819 Symptom_Type: Digital clip or distortion, or "overdriven" sound Title: [USB-Audio - USB Device 0x46d:0x819, recording] Sound is distorted UpgradeStatus: Upgraded to zesty on 2017-07-05 (4 days ago) dmi.bios.date: 02/23/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: C.60 dmi.board.asset.tag: Default string dmi.board.name: B150 PC MATE (MS-7971) dmi.board.vendor: MSI dmi.board.version: 2.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrC.60:bd02/23/2016:svnMSI:pnMS-7971:pvr2.0:rvnMSI:rnB150PCMATE(MS-7971):rvr2.0:cvnMSI:ct3:cvr2.0: dmi.product.name: MS-7971 dmi.product.version: 2.0 dmi.sys.vendor: MSI mtime.conffile..etc.modprobe.d.alsa-base.conf: 2017-04-23T21:54:23.554412 ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1703264 Title: [USB-Audio - USB Device 0x46d:0x819, recording] "chipmunk" noise on logitech webcam input when video also recording To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1703264/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
