no sound in mplayer

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