Nvidia hardware acceleration (VDPAU) is not enabled by default

Binary package hint: mplayer

You need to at least add these lines to your ~/.mplayer/config (or use equivalent command line options):

vo=vdpau,gl2,
vc=ffh264vdpau,ffmpeg12vdpau,

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: mplayer 2:1.0~rc3+svn20090426-1ubuntu16
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: amd64
Card0.Amixer.info:
 Card hw:0 'default'/'Burr-Brown from TI USB Audio CODEC at usb-0000:00:12.2-2.4, full'
   Mixer name : 'USB Mixer'
   Components : 'USB08bb:2900'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.info:
 Card hw:1 'U0x46d0x809'/'USB Device 0x46d:0x809 at usb-0000:00:12.2-4, high speed'
   Mixer name : 'USB Mixer'
   Components : 'USB046d:0809'
   Controls : 2
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'Mic',0
   Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
   Capture channels: Mono
   Limits: Capture 0 - 6400
   Mono: Capture 6400 [100%] [31.00dB] [on]
Card2.Amixer.info:
 Card hw:2 'SB'/'HDA ATI SB at 0xf7cf8000 irq 16'
   Mixer name : 'Realtek ALC1200'
   Components : 'HDA:10ec0888,104383c0,00100101'
   Controls : 35
   Simple ctrls : 20
Date: Tue Aug 17 12:51:19 2010
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
LiveMediaBuild: PTS Desktop Live 2010.1 (Anzhofen)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions:
 libavcodec52 4:0.5.1-1ubuntu1
 libavcodec-extra-52 N/A
SourcePackage: mplayer
dmi.bios.date: 11/19/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2304
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A79T Deluxe
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.:bvr2304:bd11/19/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A79TDeluxe:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
system: distro = Ubuntu, architecture = x86_64, kernel = 2.6.32-24-generic