Thank you for your bug report. what packages did you update before getting the issue? That's not likely a bug in the control UI but could be the kernel or pulseaudio ... do you still get the issue after a restart?
** Changed in: unity-control-center (Ubuntu) Importance: Undecided => Low ** Changed in: unity-control-center (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to unity-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1742424 Title: After update(Today), No sound from speaker, but Headphone is OK. Status in unity-control-center package in Ubuntu: Incomplete Bug description: My PC is Asus ROG Strix GL753VD. Today, after update, no sound from speaker, but Headphone is OK. Maybe, NVIDIA driver update was cause of this, I think. Thank you. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: unity-control-center 15.04.0+16.04.20170214-0ubuntu2 ProcVersionSignature: Ubuntu 4.4.0-108.131-generic 4.4.98 Uname: Linux 4.4.0-108-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 CurrentDesktop: Unity Date: Wed Jan 10 20:32:37 2018 ExecutablePath: /usr/bin/unity-control-center InstallationDate: Installed on 2017-05-01 (254 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64(20160426.1) ProcEnviron: PATH=(custom, user) SHELL=/bin/bash LANG=ja_JP.UTF-8 LANGUAGE=ja_JP XDG_RUNTIME_DIR=<set> SourcePackage: unity-control-center UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1742424/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp