after update, no sound

[steve]

after a normal update, sound gives error of "Failed to set the selected audio output device". This error is in the audio/video system settings. pulseaudio does not seem to be running, and won't start with pulseaudio --start command.

More than happy to provide additional info if needed. This is Ubuntu 14.04.2 LTS, fresh install a few months ago, audio was working as expected up until update to 3.13.0-53 kernel. Reverting the kernel with grub back to earlier ones did not restore the audio.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11.1
ProcVersionSignature: Ubuntu 3.13.0-53.89-generic 3.13.11-ckt19
Uname: Linux 3.13.0-53-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.11
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: leperas 1954 F.... kded4
                      leperas 2062 F.... kmix
CurrentDesktop: KDE
Date: Mon May 25 23:19:38 2015
InstallationDate: Installed on 2015-03-14 (73 days ago)
InstallationMedia: Kubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
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: 04/15/2013
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V2.22
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: MA40_HX
dmi.board.vendor: Acer
dmi.board.version: Type2 - A01 Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV2.22:bd04/15/2013:svnAcer:pnAspireM5-481PT:pvrV2.22:rvnAcer:rnMA40_HX:rvrType2-A01BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire M5-481PT
dmi.product.version: V2.22
dmi.sys.vendor: Acer

[steve (leperas)]

Here is the output of aplay -l
*** List of PLAYBACK Hardware Devices ****
Opened target file /tmp/pulseverbose.log.45
card 0: PCH [HDA Intel PCH], device 0: ALC271X Analog [ALC271X Analog]
  Subdevices: 0/1
  Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

[Raymond (superquad-vortex2)]

are your ata2 disk failing ?

 19.633591] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 19.633593] sd 1:0:0:0: [sdb]
[ 19.633595] Sense Key : Medium Error [current] [descriptor]
[ 19.633598] Descriptor sense data with sense descriptors (in hex):
[ 19.633600] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[ 19.633608] 00 5d 69 c0
[ 19.633612] sd 1:0:0:0: [sdb]
[ 19.633615] Add. Sense: Unrecovered read error - auto reallocate failed
[ 19.633617] sd 1:0:0:0: [sdb] CDB:
[ 19.633619] Read(10): 28 00 00 5d 69 c0 00 00 08 00
[ 19.633627] end_request: I/O error, dev sdb, sector 6121920
[ 19.633642] ata2: EH complete
[ 20.009267] ata2.00: exception Emask 0x0 SAct 0x180000 SErr 0x0 action 0x0
[ 20.009276] ata2.00: irq_stat 0x40000008
[ 20.009284] ata2.00: failed command: READ FPDMA QUEUED
[ 20.009296] ata2.00: cmd 60/08:98:c0:69:5d/00:00:00:00:00/40 tag 19 ncq 4096 in
[ 20.009296] res 41/40:08:c0:69:5d/00:00:00:00:00/00 Emask 0x409 (media error) <F>
[ 20.009302] ata2.00: status: { DRDY ERR }
[ 20.009306] ata2.00: error: { UNC }
[ 20.010541] ata2.00: configured for UDMA/100
[ 20.010567] sd 1:0:0:0: [sdb] Unhandled sense code
[ 20.010570] sd 1:0:0:0: [sdb]
[ 20.010571] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 20.010573] sd 1:0:0:0: [sdb]
[ 20.010575] Sense Key : Medium Error [current] [descriptor]
[ 20.010577] Descriptor sense data with sense descriptors (in hex):
[ 20.010578] 72 03 11 04 00 00 00 0c 00 0a 80 00 00 00 00 00
[ 20.010583] 00 5d 69 c0
[ 20.010586] sd 1:0:0:0: [sdb]
[ 20.010588] Add. Sense: Unrecovered read error - auto reallocate failed