no sound in mplayer

[Albert Zeyer]

Binary package hint: mplayer

==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
[AO_ALSA] alsa-lib: pcm_hw.c:1293:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy
[AO_ALSA] alsa-lib: pcm_dmix.c:1010:(snd_pcm_dmix_open) unable to open slave
[AO_ALSA] Playback open error: Device or resource busy
Failed to initialize audio driver 'alsa'
AO: [pulse] Init failed: Connection refused
Failed to initialize audio driver 'pulse'
[AO SDL] Samplerate: 48000Hz Channels: Stereo Format s16le
[AO_ALSA] alsa-lib: pcm_hw.c:1293:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed: Device or resource busy
[AO_ALSA] alsa-lib: pcm_dmix.c:1010:(snd_pcm_dmix_open) unable to open slave
[AO SDL] Unable to open audio: No available audio device
Failed to initialize audio driver 'sdl'
[AO ESD] esd_open_sound failed: Connection timed out
Failed to initialize audio driver 'esd'
Could not open/initialize audio device -> no sound.
Audio: no sound

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mplayer 2:1.0~rc3+svn20090426-1ubuntu16
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic-pae 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic-pae i686
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/dsp: az 6933 F.... vlc
 /dev/snd/controlC0: az 1661 F.... knotify4
                      az 1700 F.... kmix
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 22'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,104382fe,00100101'
   Controls : 40
   Simple ctrls : 22
Date: Tue Aug 17 23:10:18 2010
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100427)
ProcEnviron:
 LANGUAGE=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions:
 libavcodec52 N/A
 libavcodec-extra-52 4:0.5.1-1ubuntu1
SourcePackage: mplayer
UserConf: # Write your default config options here!
dmi.bios.date: 02/23/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2002
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P5Q-PRO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2002:bd02/23/2009:svnSystemmanufacturer:pnP5Q-PRO:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5Q-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: P5Q-PRO
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
system: distro = Ubuntu, architecture = i686, kernel = 2.6.32-24-generic-pae

[Reinhard Tartler (siretart)]

The attached user configs indicates a configuration problem:

 - the mplayer output shows that mplayer doesn't try to use pulseaudio at all, but goes via alsa directly
 - the alsa library fails to open the device, most likely because some other application is already holding the device open
 - the mplayer configuration was altered to not use pulseaudio
 - the user alsa configuration contains only comments, but the commented out configuration indicates that the system had at some point two audio cards. This indicates the user has some experience with customizing alsa

I suspect that a pulseaudio daemon is running and blocks the device from being used from other applications. IMO the correct fix is to revert the configuration change and use pulseaudio.

[Albert Zeyer (albertzeyer)]

Reopening this because there is no activity on the question. I.e. I guess it is really a bug if nobody is able to help.