Question about laggy display

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shadowsoal

n00b
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Dec 15, 2008
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17
I built a desktop at the beginning of this year and have recently come across a few problems concerning my display and was hoping someone here could give me some advice. When I'm trying to play movies that are "higher quality" (example: a 100 movie in 1920x1200 resolution, file size ~9GB) lag and skip a lot. Even when playing a movie that was notably lower quality. (86 minute movie 1280x720 resolution, file size ~2GB) I still got very noticible lag and skipping.

I have a Lenovo L222 HD LCD Monitor(1920x1200 native resolution), Intel Core 2 Quad Q9550 Yorkfield 2.83GHz processor and a HIS Hightech H487F512P Radeon HD 4870 graphics card.

Did I not buy a beefy enough graphics card for my monitor? Could I have set something up incorrectly when I built the machine?
 
I never attempted to play a 9GB video file before, but I have played back a 2GB+ Lord of the Rings movie (that I personally encoded @ 680 x 288 back in 2003) and had no issues. Granted the resolution is lower than what you are trying to playback.

Perhaps the movies are not encoded properly and is causing the issue you are experiencing. Can you play them back on another PC? Your current PC is powerful enough to play back those movie files.

Try reinstalling the drivers and defragging the hard drive.
 
Shouldn't have anything to do with your video card or the monitor itself. Sounds like a codec problem or a bad encode to me.

EDIT: 9gb files are far from uncommon, they'll play perfectly with FAR less hardware than he has.
 
I never tried playing a 9GB file either, but I don't think it's an issue with the monitor, but perhaps memory and buffering. Like Jag said, try defrag, or eliminating some background progs, or maybe even setting buffer memory in the media player to something higher.
 
Your system is certainly powerful enough to playback anything. My 5 year old PC was able to playback up to 720P, it only lagged on full 1080P. My current quad core system can playback 1080P while doing several other things at the same time with no lag at all.

Did you install all your motherboard drivers? Are you using the proper codecs for your OS?
 
Depending on codec that system might be able to play it back. With an efficient codec it will though. Doesn't have anything to do with your display though.
 
I didn't explicitly install any new codecs on this system, just VLC player, if that's my issue is there a pack of standard codecs that I should install?
 
Check if the video player you are using is offloading the video decoding to the video card. If it isn't it might have something to do with it.
 
You might wish to find out how much CPU time is being used whilst idle and when playing the movie. This is less about displays and more about software. As an alternative, try installing SMPlayer.
 
Did you check if the acceleration setting on the display property somehow got notched down?
 
VLC is particulary bad when it comes to performance. It will (if I'm not mistaken) only utilize one of the cores.
 
I am not sure how to check if VLC is offloading the video decoding to the video card.

When I'm idle I'm using below 5% on all cores, and when I'm playing the movie all cores are around 20-30%, so none of them are maxing out... Is there any reason I should install SMPlayer?

I'm not sure what display property you're talking about, is this a system property, or a property of VLC?

I would assume the newest version of VLC in parallelized, since all my cores were at <5% before I started the video, and they all jumped to 20-30% when viewing the video.
 
There could be a problem with the hard drive you're reading from. Have you tried benchmarking it to see if the performance spikes/drops across the drive? Your CPU and video card are definitely good enough to play at least one full 1080p stream. My parents' HTPC box is an AMD 5200+ (dual core @ 2.91 GHz) with onboard Radeon HD3200 graphics and it can play a full 1080p 12 GB movie. Another suggestion (as has been suggested before) is a codec problem. Try removing all current codecs using Codec Sniper then install the Combined Comunity Codec Pack. Play the media back with the included Media Player Classic app.
 
Get a copy of Cyberlink PowerDVD. It comes with all of the codecs you need and plays perfect.

Like many have said already; it is not your hardware.

Dave
 
I installed MPC because I've had good experiences with it on another one of my machines, videos play flawlessly. I guess VLC just sucks...
 
Just installed VLC and compared it to the MPC i'm using. VLC does use both cores. It just can't handle the video. I went through the first two minutes of the 1080p BlueRay rip of FREEDOM and The CPU usage on the MPC peaks at around 80% (That's one heck of an intro!). VLC on the other hand starts getting choppy, then artifacts, and finally stops playing the video during the intense parts. It does continue playing afterwards but you'll be missing action scenes on this thing.

CPU: E7200
Video: 9800GTX
 
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