Same problem here on my Asus EeePC 1015px on Ubuntu Mate 16.04.1. After a clean O.S installation the speakers worked for few days, but today I found that I got this issue also. I can confirm that using headphones the sound is properly reproduced. The operating system has all the updates available to 2016/11/06 installed.
Another strange thing I noticed is that the alert volume bar keeps returning at lowest position at every reboot, no matter if I pull it up; please check the attached image. I also booted a live Ubuntu Mate 16.04.1 (from the usb flash disk I used to install the O.S few days ago) and I'm still unable to play sound from speakers. Here's all entries I found in syslog after boot regarding the audio subsystem: Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525107] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC269VB: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525125] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525137] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x1a/0x0/0x0/0x0/0x0) Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525145] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525154] snd_hda_codec_realtek hdaudioC0D0: inputs: Nov 6 14:30:05 ubuntu-mate kernel: [ 55.525165] snd_hda_codec_realtek hdaudioC0D0: Mic=0x12 Nov 6 14:30:14 ubuntu-mate pulseaudio[3715]: [pulseaudio] authkey.c: Failed to open cookie file '/home/ubuntu-mate/.config/pulse/cookie': File o directory non esistente Nov 6 14:30:14 ubuntu-mate pulseaudio[3715]: [pulseaudio] authkey.c: Failed to load authentication key '/home/ubuntu-mate/.config/pulse/cookie': File o directory non esistente Nov 6 14:30:14 ubuntu-mate pulseaudio[3715]: [pulseaudio] authkey.c: Failed to open cookie file '/home/ubuntu-mate/.pulse-cookie': File o directory non esistente Nov 6 14:30:14 ubuntu-mate pulseaudio[3715]: [pulseaudio] authkey.c: Failed to load authentication key '/home/ubuntu-mate/.pulse-cookie': File o directory non esistente Nov 6 14:30:14 ubuntu-mate pulseaudio[3856]: [pulseaudio] pid.c: Daemon already running. Nov 6 14:30:39 ubuntu-mate pulseaudio[3715]: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken. ** Attachment added: "Screenshot at 2016-11-06 14_29_36.png" https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1606078/+attachment/4773469/+files/Screenshot%20at%202016-11-06%2014_29_36.png -- 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/1606078 Title: No sound with Ubuntu 16.04 Status in alsa-driver package in Ubuntu: Incomplete Bug description: After a fresh install of Ubuntu 16.04.1 on an LG S1 Express Dual laptop there was no sound from the speakers unless external speakers where hooked to the headphones socket. This applies to the Ubuntu Mate, Xubuntu and Lubuntu variants. This laptop was working fine for all previous releases up to 14.04. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: alsa-base 1.0.25+dfsg-0ubuntu5 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic i686 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bashar 3263 F.... pulseaudio CurrentDesktop: Unity Date: Mon Jul 25 01:51:19 2016 InstallationDate: Installed on 2016-07-24 (0 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release i386 (20160719) PackageArchitecture: all ProcEnviron: LANGUAGE=en_US PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:Intel failed Symptom_Card: Built-in Audio - HDA Intel Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: bashar 3263 F.... pulseaudio Symptom_Jack: Line Out, Internal Symptom_Type: No sound at all Title: [S1-M401E1, Realtek ALC880, Line Out, Internal] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/16/2006 dmi.bios.vendor: Phoenix Technologies LTD dmi.bios.version: RKYWSF0B dmi.board.name: ROCKY dmi.board.vendor: LG Electronics dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LG Electronics dmi.chassis.version: N/A dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrRKYWSF0B:bd02/16/2006:svnLGElectronics:pnS1-M401E1:pvrNotApplicable:rvnLGElectronics:rnROCKY:rvrNotApplicable:cvnLGElectronics:ct10:cvrN/A: dmi.product.name: S1-M401E1 dmi.product.version: Not Applicable dmi.sys.vendor: LG Electronics To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1606078/+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
