After rebooting the sound now works. No idea why exactly, I had done several previous reboots without effect, but the one after the 'sudo alsa force-reload seems to have worked.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1661899 Title: [20ENCTO1WW, Realtek ALC298, Speaker, Internal] No sound at all Status in alsa-driver package in Ubuntu: New Bug description: This is a fresh install of Ubuntu 16-04 on a Thinkpad P50. Sound works when booting into Windows, but not in Ubuntu. No sound from internal speakers or headphones. Sound controls all seem to work, volume controls and mute buttons work in settings as well as the keyboard sound controls (they show changing volume level etc on the screen, but there is never any sound). I have unsuccessfully used these commands in an attempt to fix the problem: sudo apt-get remove --purge alsa-base pulseaudio sudo apt-get install alsa-base pulseaudio sudo alsa force-reload ( As recommended on this site: https://www.unixmen.com/2012003-howto-resolve-nosound-problem-on-ubuntu/ ) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base (not installed) ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40 Uname: Linux 4.4.0-62-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Sun Feb 5 09:43:25 2017 EcryptfsInUse: Yes InstallationDate: Installed on 2017-02-06 (-1 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) ProcEnviron: LANGUAGE=en_AU:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Built-in Audio - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: p 2075 F.... pulseaudio Symptom_Jack: Speaker, Internal Symptom_Type: No sound at all Title: [20ENCTO1WW, Realtek ALC298, Speaker, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1661899/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

