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[Guybrush]

After much work, I'm still having blu-ray playback judder issues. Here's a synopsis:

1. My HTPC has an i7-4790K CPU and 980 Ti GPU. Computational muscle is not the issue. The same judder is present on Red October standard and HQ modes. It's also present using PowerDVD.

2. My TV refresh rate is set at 23Hz, and madvr reports the refresh rate of the tv and fps of the movie to be nearly identical. I don't think this is the issue. Also, when going through a juddery scene, madvr does not report any dropped or repeated frames.

3. MadVR's smooth motion has no effect on reducing the judder.

4. My TV is a Panasonic AX800 4K. Enabling the "Motion Picture Setting" feature greatly improves the problem, but creates flickering of its own. Most forums say to disable this feature, but the judder is horrible without it, and barely tolerable with it.

So, I thought a TV's "Motion Picture Setting" was like frame interpolation. Why would this be needed if the frame rate and refresh rate already match? Is there no other way to fix the judder problem without it? Again, it introduces terrible flickering at times, so I'd rather not use it if possible. I think I've covered all the usual solutions, but please let me know if I'm missing anything. Thanks!

[JimH]

2. My TV refresh rate is set at 23Hz, and madvr reports the refresh rate of the tv and fps of the movie to be nearly identical.

I believe this is the issue.  Try an Internet search for the solution.

[Hendrik]

Some TVs have issues with 24p playback in general. If you can't use their interpolation for some reason, you may be screwed. Should find some others with the exact same TV and share experiences with them. There is no universal answer anyone can give.
As an alternative could use 60Hz mode and activate madVRs SmoothMotion, that should alleviate most of the problems.

[Guybrush]

Some TVs have issues with 24p playback in general. If you can't use their interpolation for some reason, you may be screwed. Should find some others with the exact same TV and share experiences with them. There is no universal answer anyone can give.
As an alternative could use 60Hz mode and activate madVRs SmoothMotion, that should alleviate most of the problems.

Thanks for the tip. I tried playing the same juddery scenes on my ps3 and there was no change. So it is the tv, not some setting on my pc.

[RoderickGI]

Thanks for the tip. I tried playing the same juddery scenes on my ps3 and there was no change. So it is the tv, not some setting on my pc.

Because your PC is still trying to play the video at 23Hz. Assuming your TV is 1080p, set your PC desktop to 1920x1080@60Hz, and your TV to 60Hz, and playback in MC to Desktop Settings in Options>Video>Display Settings, by turning "Display Settings automatic change mode" to Off.

Plus turn on SmoothMotion and Video Clock. I suspect you should also turn off the TV's "Motion Picture Setting", or at least try the problem video with it turned off.

Some TVs have issues with 24p playback in general.

2. My TV refresh rate is set at 23Hz, and madvr reports the refresh rate of the tv and fps of the movie to be nearly identical.

A video at 23.976fps is nearly identical to a video at 24fps, but some devices have trouble playing them back if they aren't set to the correct frame rate. Using 60Hz gets around the problem mostly. If you don't want to do that, research those two frame rates, what your TV is actually capable of, what the videos actually are (use MediaInfo), and see if you can make the rate actually identical, rather than just nearly.

[stewart_pk]

Thanks for the tip. I tried playing the same juddery scenes on my ps3 and there was no change. So it is the tv, not some setting on my pc.

I suspect you're just seeing normal film judder which is especially noticeable during camera pans. This is normal when watching 24 fps content but might be exaggerated with some displays.