Public bug reported: I have iMac 15.1 2014. Sometimes my internal speaker works, sometimes doesn't. When I ran the ubuntu-bug tool, internal speakers worked, however when I use spotify or youtube from different browsers, there are no sound at all. I did remove&install alsa-lib again and again but no luck.
ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.10.0-42.46~16.04.1-generic 4.10.17 Uname: Linux 4.10.0-42-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.14 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: said 2018 F.... pulseaudio /dev/snd/pcmC0D0p: said 2018 F...m pulseaudio /dev/snd/controlC0: said 2018 F.... pulseaudio CurrentDesktop: GNOME Date: Mon Dec 18 09:42:42 2017 InstallationDate: Installed on 2017-08-01 (138 days ago) InstallationMedia: Ubuntu-GNOME 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [iMac15,1, Cirrus Logic CS4206, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/22/2016 dmi.bios.vendor: Apple Inc. dmi.bios.version: IM151.88Z.0207.B06.1602221600 dmi.board.asset.tag: Base Board Asset Tag# dmi.board.name: Mac-FA842E06C61E91C5 dmi.board.vendor: Apple Inc. dmi.board.version: iMac15,1 dmi.chassis.type: 13 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-FA842E06C61E91C5 dmi.modalias: dmi:bvnAppleInc.:bvrIM151.88Z.0207.B06.1602221600:bd02/22/2016:svnAppleInc.:pniMac15,1:pvr1.0:rvnAppleInc.:rnMac-FA842E06C61E91C5:rvriMac15,1:cvnAppleInc.:ct13:cvrMac-FA842E06C61E91C5: dmi.product.name: iMac15,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. mtime.conffile..etc.modprobe.d.alsa-base.conf: 2017-10-24T17:32:41.504894 ** Affects: alsa-driver (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1738724 Title: [iMac15,1, Cirrus Logic CS4206, Speaker, Internal] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1738724/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs