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[maid]

We have recently installed an Onkyo Av amp.

Our videos are jumpy.
I went to check nvidia display and found that it had listed the Onkyo as the display.

We have a Toshiba 42in Tv

also nvidia has the native display as 1920!x1080 30hz instead of 1920x1080 60hz

I am confused as why nvidia thinks the Onkyo is the display.

Please help

[Arindelle]

If my memory serves me correctly from my gaming days of lore, a screen running 30hz means it can only display 30FPS, while a screen running at 60hz can display 60fps. Google 30hz instead of 60hz brings up a lot of stuff on this.

If the Toshiba has a Native resolution of 60HZ, and the GPU is set to 30 it would be normal to see jumpy or "laggy" videos. Set the nvidia to 60hz should be much better

As for the nvidia card I'm not sure as I don't have one -- you are HDMI from the GPU to the Onkyo and not GPU to the TV? Don't want to steer you the wrong way, I'd be just guessing just guessing 

[maid]

Tried setting the nvidia back to 60 and jriver played in a small screen with like a faze all over it.

Why is Nvidia seeing the Onkyo as the display??

[fitbrit]

That is the correct behaviour for nVidia cards to see the Onkyo as a display. Believe me, it's a good thing. Otherwise your next post would have been "Why can I only get stereo sound out of my new Onkyo receiver?"
What you need to do is to create a custom setting in the nVidia drivers. It should let you create 1920x1080 at 60 Hz.
The 30 Hz setting will cause your picture to be interlaced.

[maid]

I have figured out that I can set Nvidia to 60hz but cant use MC display switching

[maid]

still having issues with movies jumping badly on panning.

video display changing does not work as it will not play with this selected.

[6233638]

Does the display/receiver support 1080p24?
60Hz will not display judder-free panning in films.

[maid]

The Onkyo supports 24hz and I have set this.

I tried auto display settings again and this does not work everything goes fuzzy like its the wrong Frame rate or the renderer?

[maid]

played movie was slightly better but still skips.

Also watched tv show and that was very skippy.

What next please ?

[6233638]

I'm not sure if your system is fast enough for it, but you could try switching to ROHQ, and configuring madVR's display switcher to 1080p24, 1080p60 and if your display/AVR support it, 1080p50.
 
You will probably also have to set madVR's scaling options to bilinear for everything - at least to begin with.
Details on how to do this are in the guide linked at the bottom of my post.

[maid]

Is this instead of using the video settings and should I put my nvidia back to 60hz or leave at 24hz

[6233638]

Is this instead of using the video settings and should I put my nvidia back to 60hz or leave at 24hz

You should be able to set the Nvidia control panel back to 60Hz if madVR's display mode switcher doesn't cause you problems.

[maid]

1080p24 1080p50 1080p60

If my movies are 720p do I put that in as well ??


reclock or video clock? I am using HDMI bitstreaming and I thought that video clock did not work using
this. sorry for being a newb

[6233638]

1080p24 1080p50 1080p60

If my movies are 720p do I put that in as well ??

This sets the output resolution sent to the display. madVR will pick whichever is the most appropriate output for the video you are trying to play. (e.g. 1080p24 if the source is 24fps)
If you have a 720p video, it will be scaled to 1080p by madVR, using whichever upscaling algorithm you have selected.
You can add 720p to the list if you want your AVR or display to handle the scaling instead, though I generally don't recommend it.

reclock or video clock? I am using HDMI bitstreaming and I thought that video clock did not work using
this. sorry for being a newb

I recommend disabling bitstreaming, and using VideoClock. That setting in madVR only affects PAL film content though - it will use VideoClock to output 25fps films at the original 24Hz rate.
 
Bitstreaming has the possibility to introduce stuttering during playback as the video and audio clocks drift in and out of sync. (in a PC, they are not linked, a stand-alone player is likely using the same clock source for both audio and video)
VideoClock solves that problem by adjusting the audio rate to match the video clock, but it can't do this without decoding the audio first.

[maid]

If I disable bitstreaming does that mean we have to use DSP etc?

[6233638]

If I disable bitstreaming does that mean we have to use DSP etc?

It gives you the option to use DSP, but you are not required to.

[maid]

so the Onkyo still does the output?

[6233638]

so the Onkyo still does the output?

When you bitstream, what you are doing is sending the audio to your AVR in a Losslessly compressed format. (DTS HD or Dolby TrueHD)
If you disable bitstreaming, you have exactly the same audio* sent to the AVR, but in an Uncompressed PCM format.
 
 
 
*DTS HD requires an external decoder to be installed for bit-perfect decoding.

[maid]

Seeing as I know nothing about this which is best compressed or uncompressed and do I need the external decoder ?

[6233638]

Seeing as I know nothing about this which is best compressed or uncompressed and do I need the external decoder ?

Lossless compression, and uncompressed files contain exactly the same audio.
 
The difference is that a losslessly compressed file takes up a smaller amount of space on a disc, and uses less bandwidth over a cable.
 
HDMI has more than enough bandwidth for 7.1 uncompressed channels of audio, so it doesn't matter whether it's decoded in the PC or in the AVR as far as bandwidth is concerned.

[maid]

Hello again,

Thanks for the message.

If I untick bit streaming will the onkyo recognize DTS etc

[6233638]

If I untick bit streaming will the onkyo recognize DTS etc

No, the AVR will report PCM because Media Center decodes the audio if you disable bitstreaming.
 
If it makes things clearer, here's what happens:

Bitstreaming:

• The original PCM audio is compressed to DTS/Dolby and stored on the disc.
• The player (Media Center) passes the DTS/Dolby track to your AVR.
• The AVR decodes the audio from DTS/Dolby back to PCM.
• The AVR plays the PCM audio through your speakers.

Standard playback:

• The original PCM audio is compressed to DTS/Dolby and stored on the disc.
• The player (Media Center) decodes the audio from DTS/Dolby back to PCM.
• The decoded PCM audio is sent to the AVR.
• The AVR plays the PCM audio through your speakers.

The only difference is where the decoding step happens. The audio is the same.

[maid]

Ok then I will keep bitstreaming on as the Onkyo has awesome sound

[6233638]

Ok then I will keep bitstreaming on as the Onkyo has awesome sound

Media Center cannot apply processing to compressed audio formats like Dolby/DTS, so you will be unable to use the VideoClock feature if you do this.
 
One of the main reasons to use VideoClock is if you are getting dropped frames (stutters) or audio sync problems during video playback.

[maid]

same problem, as soon as the display switches the screen shrinks and the video is fuzzy and unreadable

Put back to 60hz in nvidia and tv show is jumpy and out of  sync

[6233638]

I don't suppose you can upload an image of what the TV is doing?
Is there a "passthrough" mode that needs to be enabled for the AVR?
I assume both the TV and AVR do support 1080p

[maid]

It only does this when using display switching, without that it play ok just the jumping problem

I think I may have worked it out.

It is anything that has 25fps.

If i set nvidia to 60h then use video display switching I have to put Pal on 25 as it will not work on 50

All others are fine.