HDMI Audio and all other audio disappeared from input sources and output sources in the audio control panel and stereo system is looping between audio is coming and audio is not coming from the computer.

[GRMrGecko]

After I did an update via system update, my system stopped working with audio. I then viewed the audio control panel and non of my output/input sources appear. I'm assuming that a component that Pulse Audio uses has been updated and ether Pulse Audio does not know how to communicate with it, or the component was not tested before being released. I have not changed any of my hardware configurations, so it cannot be a hardware issue. Also using XBMC and I'm guessing XBMC backed down to using ASLA, I am able to set HDMI out (which I had to change from previous configuration which I'm assuming is because Pulse Audio is unable to start) and it works fine until I stop using it for awhile. After I stop using it for awhile, I have to reboot the system to get XBMC working again.

The way my stereo system (A Yamaha Receiver) is reacting to this is it's showing it has audio coming from the computer one second, then the other second it doesn't have audio. I'm assuming this is the daemon of Pulse Audio restarting over and over again after it cannot start.

I ran pulse audio in verbose mode to show what module is causing it to fail to load, and it is module-systemd-login. The reason it is failing to load is "Failed to create session monitor: No space left on device" but none of my disks are anywhere near being used up, nor is my ram, so I have no idea as to what it could be referring to... Maybe it's referring to space in the audio hardware??? I do not know... I have attached the logs on here.

Any help would be useful in getting my audio back, I'm a hacker/developer/all around geek who loves the terminal, so please ask any questions! Please do feel free to email me, I want my audio back!

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11
ProcVersionSignature: Ubuntu 3.13.0-30.54-generic 3.13.11.2
Uname: Linux 3.13.0-30-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D2c', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC0D8p', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
Date: Tue Jul 1 08:34:09 2014
InstallationDate: Installed on 2014-05-18 (43 days ago)
InstallationMedia: It
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/02/2013
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: V2.4
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: B85-G41 PC Mate(MS-7850)
dmi.board.vendor: MSI
dmi.board.version: 1.0
dmi.chassis.asset.tag: To be filled by O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: MSI
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.4:bd12/02/2013:svnMSI:pnMS-7850:pvr1.0:rvnMSI:rnB85-G41PCMate(MS-7850):rvr1.0:cvnMSI:ct3:cvr1.0:
dmi.product.name: MS-7850
dmi.product.version: 1.0
dmi.sys.vendor: MSI

[GRMrGecko (grmrgecko)]

I fixed it on my end by re-installing Ubuntu from scratch. You should probably look into my logs to find out what could have caused it though.

[Raymond (superquad-vortex2)]

27.803691] ata2.00: exception Emask 0x10 SAct 0x7fffffff SErr 0x400101 action 0x6 frozen
[ 27.803694] ata2.00: irq_stat 0x08000000, interface fatal error
[ 27.803695] ata2: SError: { RecovData UnrecovData Handshk }
[ 27.803697] ata2.00: failed command: WRITE FPDMA QUEUED
[ 27.803699] ata2.00: cmd 61/20:00:40:e7:07/00:00:05:00:00/40 tag 0 ncq 16384 out
[ 27.803699] res 40/00:e8:60:78:13/00:00:2b:00:00/40 Emask 0x10 (ATA bus error)
[ 27.803700] ata2.00: status: { DRDY }
[ 27.803701] ata2.00: failed command: WRITE FPDMA QUEUED
[ 27.803703] ata2.00: cmd 61/90:08:b0:12:04/00:00:2b:00:00/40 tag 1 ncq 73728 out
[ 27.803703] res 40/00:e8:60:78:13/00:00:2b:00:00/40 Emask 0x10 (ATA bus error)
[ 27.803704] ata2.00: status: { DRDY }

[Daniel van Vugt (vanvugt)]

The attachments show that pulseaudio was not running when the bug was reported in 2014. That's why things seem to disappear in the GUI:

!!Sound Servers on this system
!!----------------------------

Pulseaudio:
      Installed - Yes (/usr/bin/pulseaudio)
      Running - No

Please let us know if you still experience the problem, and if so then in what Ubuntu version.

[Launchpad Janitor (janitor)]

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]