mkv video file

this is the log file

Codec Tweak Tool | Log file | Generated at 2015-02-16 00:42:40


##### System Information #####

OS: Windows Vista (TM) Home Premium Service Pack 2 (6.00.6002)
DirectX: 9.0c + 10 + 10.1 + 11
CPU name: Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
CPU speed: 1997 MHz
Memory: 2048 MB
Screen size: 1024x768 (32bits) (60Hz)
Video card: NVIDIA GeForce Go 7900 GS
VendorID: 10de, DeviceID: 0298, SubSys: 019b1028
Video mem: 256 MB
Video driver: nvd3dum.dll (Version 7.15.11.5669) (10-4-2007)
Audio device: SigmaTel High Definition Audio CODEC
VendorID: 8384, DeviceID: 7690, SubSys: 102801ce
Audio driver: stwrt.sys (Version 6.10.0.5614) (9-13-2007)

##### K-Lite Codec Pack #####

KLCP version: 10.9.5
KLCP type: mega

Speaker conf: 2.0

my question:
How can play a mkv video file on my windows media player...the problem is after i download the video file; the window player only play the sound not pictures!!!

Did you perhaps enable hardware acceleration? Your graphics card does not fully support that.

Does playback work if you use MPC-HC or GraphStudioNext?

Here you can find the latest graphics driver for your card:
http://www.nvidia.com/download/driverResults.aspx/8971/en-us

Thanks for your reply
I am now downloading now the latest graphics driver you kindly send me...
For MPC-HC playback,same thing happen sound with no pictures...

I assume that neither WMP nor MPC-HC displayed any error messages?

When playing the file in MPC-HC look at: Menu > Play > Filters. It should list LAV Video Decoder. Please let me know if it shows a different video decoder there, as that would be a likely cause of the problem.

Filters currently loaded:
- Default DirectSound Device
- Audio Switcher
- ffdshow Audio Decoder
- Haali Media Splitter


MPC renderer: EVR CP
MPC ISR: 1
MPC int dec: h264=1|4 vc1=1|4 mpeg2=1|4

##### Decoder Settings #####

LAV Video (x86):
H264=1|0 VC1=1|0 MPEG2=1|0 MPEG4=1|0 FLV1=1 WMV3=0

LAV Audio (x86):
MP3=1 AAC=1 Vorbis=1 AC3=1 DTS=1 LPCM=1 WMA=0

ffdshow (x86):
H264=0 VC1=0 MPEG2=0 XVID=0 DX50=0 DIV3=0 FLV1=0 RAW=0
MP3=7 AAC=1 Vorbis=1 AC3=1 DTS=17 LPCM=4 RAW=0


##### DirectShow Filters (32-bit) #####

Description: MainConcept (Sonic) DV Video Decoder
File name: c:\program files\roxio\videocore 9\sonicmcdsdv.ax
CLSID: {0F070130-EE38-4847-9807-0D4234130F65}
Merit: 00600000 = MERIT_NORMAL

Description: Sonic Solutions AMR Decoder
File name: <unknown>
CLSID: {10BBD26A-3956-4445-8C8D-34E5E981A9B2}
Merit: 00800003 = MERIT_PREFERRED + 3
Status: broken
Reason: Missing required registry key HKEY_CLASSES_ROOT\CLSID\{10BBD26A-3956-4445-8C8D-34E5E981A9B2}

Description: CyberLink MPEG-1 Splitter
File name: c:\program files\dell\mediadirect\kernel\video\clm1splter.ax
CLSID: {470659C0-0C62-4D38-BE62-4243FDE65788}
Merit: 00805000

Description: CyberLink Audio Decoder (MD3)
File name: c:\program files\dell\mediadirect\kernel\movie\claud.ax
CLSID: {470CCBB3-684C-4487-BDE2-DE008759A4ED}
Merit: 00601000

Description: CyberLink AudioCD Filter (MD3)
File name: c:\program files\dell\mediadirect\kernel\movie\claudiocd.ax
CLSID: {470D524C-037F-48E8-8B3D-77225B5CCAC9}
Merit: 00600000 = MERIT_NORMAL

Description: Roxio Audio Source Filter
File name: c:\program files\common files\roxio shared\9.0\sharedcom\rxdsaudiosource.ax
CLSID: {472C92F0-5438-423D-9B30-FD2932EA44EE}
Merit: 00400000 = MERIT_UNLIKELY

Description: CyberLink Video/SP Decoder (MD3)
File name: c:\program files\dell\mediadirect\kernel\movie\clvsd.ax
CLSID: {4749C27E-52BE-4918-8D1B-F9A3AF1A42C1}
Merit: 00600000 = MERIT_NORMAL

Description: CyberLink DVD Navigator (MD3)
File name: c:\program files\dell\mediadirect\kernel\movie\clnavx.ax
CLSID: {47E2698F-4B74-4D16-8C24-06275EEC468D}
Merit: 00600000 = MERIT_NORMAL

Description: CyberLink MPEG-2 Splitter
File name: c:\program files\dell\mediadirect\kernel\video\clm2splter.ax
CLSID: {47F959F3-F578-473E-AE86-1080B1A3D676}
Merit: 00805000

Description: CyberLink MP3 Wrapper-PCM
File name: c:\program files\dell\mediadirect\kernel\music\clmp3wrap.ax
CLSID: {4888CDC1-2616-4915-89A0-F17F65EEBE29}
Merit: 00600000 = MERIT_NORMAL

Description: Xvid MPEG-4 Video Decoder
File name: c:\windows\system32\xvid.ax
CLSID: {64697678-0000-0010-8000-00AA00389B71}
Merit: 00800000 = MERIT_PREFERRED

Description: NetShow Theater Source Filter
File name: c:\windows\system32\qnspro.dll
CLSID: {65B28ABC-DE95-11D0-B605-00A0C92B5010}
Merit: 00600000 = MERIT_NORMAL

Description: VIVO Audio Decoder Filter
File name: c:\windows\system32\vvaudflt.ax
CLSID: {86D0F280-2510-11D1-9B67-006097BA977C}
Merit: 00800002 = MERIT_PREFERRED + 2

Description: Sonic MP4 Demultiplexer
File name: <unknown>
CLSID: {A7DD2151-A645-409A-9B39-DF146D710E72}
Merit: 00800101
Status: broken
Reason: Missing required registry key HKEY_CLASSES_ROOT\CLSID\{A7DD2151-A645-409A-9B39-DF146D710E72}

Description: VIVO Video Decoder Filter
File name: c:\windows\system32\vvvidflt.ax
CLSID: {B9F77840-2DC7-11D1-9B67-006097BA977C}
Merit: 00600001 = MERIT_NORMAL + 1

Description: CyberLink Video/SP Decoder (ShEX)
File name: c:\program files\dell\mediadirect\kernel\video\climagevsd.ax
CLSID: {E1D0002F-329C-4E54-B1EA-AC72F35D5060}
Merit: 005FFC18

Description: Roxio MPEG2 Demuxer
File name: c:\program files\common files\roxio shared\9.0\mpeg\roxiompegdemuxer.dll
CLSID: {FBD1F53D-14A4-46AE-B08D-FF61C50DD8BA}
Merit: 00600000 = MERIT_NORMAL

Description: Voxware MetaVoice Audio Decoder
File name: c:\windows\system32\voxmvdec.ax
CLSID: {46E32B01-A465-11D1-B550-006097242D8D}
Merit: 00999998

Description: Voxware MetaSound Audio Decoder
File name: c:\windows\system32\voxmsdec.ax
CLSID: {73F7A062-8829-11D1-B550-006097242D8D}
Merit: 00999999

(A total of 232 filters, 19 shown, 213 hidden)


##### ICM Class Manager (32-bit) #####

(A total of 5 filters, 0 shown, 5 hidden)


##### Default source filters (32-bit) #####

.3g2 {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.3gp {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.3gp2 {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.3gpp {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.aac {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ac3 {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.alac {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.amr {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ape {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.bdmv {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.bmp {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.dib {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.dts {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.dv {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.dvr-ms {C9F5FE02-F851-4eb5-99EE-AD602AF1E619} StreamBufferSource
.evo {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.f4v {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.flac {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.flv {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.gif {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.hdmov {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.jfif {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.jpe {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.jpeg {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.jpg {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.m2t {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.m2ts {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.m3u {e436ebb5-524f-11ce-9f53-0020af0ba770} File Source (Async.)
.m4a {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.m4v {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mka {55DA30FC-F16B-49FC-BAA5-AE59FC65F82D} Haali Media Splitter
.mks {55DA30FC-F16B-49FC-BAA5-AE59FC65F82D} Haali Media Splitter
.mkv {55DA30FC-F16B-49FC-BAA5-AE59FC65F82D} Haali Media Splitter
.mov {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mp3 {E436EBB5-524F-11CE-9F53-0020AF0BA770} File Source (Async.)
.mp4 {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mp4v {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mpc {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mpls {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mpv4 {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.mts {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ofr {ABE7B1D9-4B3E-4ACD-A0D1-92611D3A4492} DC-Bass Source
.ofs {ABE7B1D9-4B3E-4ACD-A0D1-92611D3A4492} DC-Bass Source
.oga {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ogg {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ogm {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ogv {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ra {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.rm {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.rmvb {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.tak {ABE7B1D9-4B3E-4ACD-A0D1-92611D3A4492} DC-Bass Source
.tga {7DF62B50-6843-11D2-9EEB-006008039E37} Generate Still Video
.tp {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.ts {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.webm {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source
.wv {B98D13E7-55DB-4385-A33D-09FD1BA26338} LAV Splitter Source

##### ACM and VFW Codecs (32-bit) #####

Description: AC3Filter ACM codec
ID: msacm.ac3filter
File name: C:\Windows\system32\ac3filter.acm

(A total of 22 codecs, 1 shown, 21 hidden)

Codec Tweak Tool > Preferred Splitters > select LAV for .mkv

That should solve it. I suspect that the file contains H.265 video, which is not supported by Haali splitter.

Anyway thanks for your assistance... :D