Stuttering - LAG on Plasma TV - Hz? FPS? Cable? GPU? - AVS Forum
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post #1 of 6 Old 08-14-2012, 07:18 PM - Thread Starter
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Hi everybody!

I bought a new Panasonic Plasma TV a few days ago. Model: TX-P50ST50.

Now it's connected to my PC:

- ASUS Maximus IV Extreme Z
- Intel i7 2700k
- SSD da 120GB + RAID da qualche TB
- nVidia GTX570 (video to 26'' PC Monitor) + nVidia GT430 (audio + video to Marantz SR7005 both with HDMI)
- Player: MPC-HC

Audio and Video come out from GT430 go to Marantz SR7005 and then Video to TV.

My "big" problem is: as I play a movie, a video or everything from the PCs the stream stutter. It's a kind of "irregular lag", like when the GPU is not able to run Crysis over 20fps tongue.giftongue.gif
The audio on the marantz still remain perfect!

I tried to:
1) disable the intelligent frame creation (Panasonic tecnology to "create frames")
2) change HDMI cables
3) plug the TV direct to the GT430
4) plug the TV direct to the GTX570 (much more performant)
5) remove the 26'' PC Monitor
6) Use different players such as VLC, Windows Media Player, Windows Media Center, ecc.
7) Increase the process priority to "Realtime"

Nothing, always the same problem.
So I copied a film to an USB flash and played it direct from the TV. No stuttering, no lag, perfect! Same story using the Apple TV of my brother... Perfect!

So I reduced the Hz of the output from the nVidia panel from 60Hz to 23Hz. Much better stream quality. The lag and stuttering are still present but almost invisible!
Instead of the intelligent frame creation on the TV menus now there is a function called 24p Smooth Film.

With 24Hz it's the same as with 23... then 25, 30, 59, 60 ... the stuttering is always increasing? or the same as with 60...

I really didn't have any idea what to do... hope you can help me smile.gifsmile.gif

Sorry for my bad english... I'm not a native speaker rolleyes.gif

Thank you very very much!
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post #2 of 6 Old 08-16-2012, 07:57 PM - Thread Starter
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Nobody can help me? frown.gif
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post #3 of 6 Old 08-17-2012, 06:59 PM
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Do you still get stutter if you use Windows Media Player?

What happens if you disable Windows Aero?
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post #4 of 6 Old 08-18-2012, 07:54 AM - Thread Starter
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Yes also with Windows Media Player... and also with Aero turned off
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post #5 of 6 Old 08-19-2012, 08:31 AM
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If possible, I suggest a complete re-format and installation of TMT5 to see how that works. With TMT5, very little setup is required. Your equipment is certainly capable of playing back stutter-free video.

I'm using an Intel e6300 with a AMD 5450, TMT3, and I have no problems playing back full 1080p video with HD audio.
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post #6 of 6 Old 08-22-2012, 10:44 PM
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In the nvidia Control Panel under "Adjust video image settings" is it set to "Use the video player setting" for both items? If this was not set this way and changing it still does not work try it with these settings and plug directly to TV and test. I have run both the GT430 and GT520 on my panny [G series] direct without an issue at 60hz for any content via WMP, WMC, DVD's or from the internet. Outside of a possibly bad video card or driver for it that's all I got.
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