Laggy Blu-ray/MKV playback. Too slow computer?

[H2SO4JB]

Only on some shots or all motion shots?

All...

[jagabo]

Try playing the video in MPCHC. While the video is playing right click on the screen and select Filters -> Video Renderer. Exactly what you see will depend on what renderer is being used, but if you flip through the tabs you'll probably see a real time frame rate report. It should match the frame rate of your video:

[Alexstarfire]

If the rip lags and the MKV lags then the problem has to be with the rip. That's the only logical conclusion. Try ripping with some other program. Does DVDFab HD do Blu-Rays?

[H2SO4JB]

Here's how it looks when I play an MKV file.
http://www.bohden.se/settings/mkv.jpg

Here's how it looks when I play an blu-ray iso file.
http://www.bohden.se/settings/blu-ray_iso.jpg

I also downloaded a copy of a movie (MKV) that I have problems with.
It is exactly the same laggy, so the error is not due to my own conversion.

All movies are exactly the same laggy with VLC as with MPCHC.

All movies are exactly the same laggy with the new computer that with the old one.

[Alexstarfire]

You probably need to get rid of some spyware or something on your computer then. It obviously has nothing to do with your codecs, players, or the media.

[jagabo]

Also try disabling any antivirus software.

[davexnet]

Could the original poster perhaps post a short clip of one of the MKV's that show the problem? (20 seconds or so).
Secondly, how about setting up MPC-HC to use DXVA ?
How can it be lagging with that massive new CPU? How about opening up the task manager and looking at the cpu
utilization while the file is playing ? Have you installed the latest BIOS and Chipset driver?
http://www.gigabyte.us/Support/Motherboard/Driver_Model.aspx?ProductID=3317&ost=window...4bit#anchor_os

Even my modest box (AMD x2 4200, Nvidia 8600GT) plays 720p and 1080p H264 using CoreAVC or DXVA without any problems.

[H2SO4JB]

Alexstarfire & jagabo >>>
Of course I have no viruses. I have also thought about this.
I have tried to format the hard drive and install only Windows, graphic card drivers
and MPC-HC, without Internet connection. Nothing else! It does not help.

davexnet >>>
Could the original poster perhaps post a short clip of one of the MKV's that show the problem?
The problem is not only for one MKV file. It applies to all MKV files, blu-ray playback
and DVD playback. Yes, you heard right. Even DVD playback that does not require a fast computer.

Secondly, how about setting up MPC-HC to use DXVA?
Look at lower left. "Playing [DXVA]".
http://www.bohden.se/settings/mkv.jpg

How about opening up the task manager and looking at the cpu utilization while the file is playing?
I have done it.
CPU: 4-5%
RAM: 1-1.2 GB

Have you installed the latest BIOS and Chipset driver?
Of course!



ALL >>>
I found a setting on my LG TV called "TruMotion". I activated it and it was MUCH BETTER.
Previously, the movie lags constantly, now it is only sometimes a bit laggy. Maybe once every 5 seconds.
I'm thinking about it is my hard drive that can not keep up. That work constantly during
video playback. Shall I buy a SCSI hard drive?

And why is it only 1-1.2 GB of RAM in use? Can't I not set up so that about 5 GB of RAM
used in video playbacks?

[jagabo]

Unless there's something wrong with your drive that's not be the problem. Blu-ray bitrates are far below what any modern hard drive can sustain (~6 MB/s vs 40 to 120 MB/s). There's no need for more memory to be used for video playback. You have something very unusual going on. I've been able to play 720p60 and 1080p24 material on every thing from a 1.7 GHz dual core (without DXVA) on up. I think there's something odd going on with your TV. That seems to be the common denominator between your old and new systems.

[H2SO4JB]

Unless there's something wrong with your drive that's not be the problem. Blu-ray bitrates are far below what any modern hard drive can sustain (~6 MB/s vs 40 to 120 MB/s). There's no need for more memory to be used for video playback. You have something very unusual going on. I've been able to play 720p60 and 1080p24 material on every thing from a 1.7 GHz dual core (without DXVA) on up. I think there's something odd going on with your TV. That seems to be the common denominator between your old and new systems.

My TV is 2 weeks old.
I just bought this:
http://www.lg.com/ca_en/tv-audio-video/tv/LG-led-tv-55LE5500.jsp

[jagabo]

The fact that you can't even get smooth DVD playback makes it almost certain the problem is with your TV. Even a 500 MHz P3 can play DVD smoothly. Be sure you are using settings that your TV fully supports. I would start with 1280x720p50. If that works properly try 1920x1080i25. Then try 1920x1080p50. Also try both RGB and YPbPr. Also, start with TruMotion turned off.

[H2SO4JB]

Ok!
I try more ...

[H2SO4JB]

Now it seems that I have found the error. When I change the Hz on my graphic
card to the same as frame rate in the movie, so the movie is not laggy anymore.
jagabo, why is it so?

And then I wonder. Is there any quick command to change the Hz for my graphic card
(GeForce GTX 460)? So I can create shortcuts to quickly change, I mean.

[jagabo]

Now it seems that I have found the error. When I change the Hz on my graphic card to the same as frame rate in the movie, so the movie is not laggy anymore.
jagabo, why is it so?

Probably because the TV is having problems determining the actual video's frame rate when the graphics card is operating at some other rate. For example, if the graphics card is set to 60 Hz and you play a 24 Hz video some frames are sent to the TV twice, some three times. The TV then has to figure out which frames are duplicates and discard them before performing its motion interpolation. Basically, it's too much work for the TV so it falls behind in its processing.

And then I wonder. Is there any quick command to change the Hz for my graphic card (GeForce GTX 460)? So I can create shortcuts to quickly change, I mean.

Not that I know of. Some media players might have that ability.

[H2SO4JB]

...