Nvidia Geforce 8400 GS

As in simply run it again or restore it to the original xorg file that I have backed up then run the script again?

Restore the original and run it again. Good question.

Ok,

Reloaded the original Xorg.conf and then reran the nvidia script. Same exact symptoms as before. Codec reports 24hz but again the TV is not switching to 24hz. Where exactly in the log can you tell that the TV is being told (or not told) to change modes?

This is interesting, here's my debug log of trying to play 300 with the display sync to 24hz option "on". You can see toward the end all the discontinuities that are causing the visible judder. Thoughts?

http://pastebin.com/EKTsJFgN

Thanks for that log. From the looks of it I would swear you have an audio problem. But the way your TV is acting and the fact that file is a non-standard resolution (800h) and the 8400 gs is a Feature Set B decoder makes me also wonder if that is an issue.

Will you try something else? Will you find a file in your collection that is completely standard (so height exactly 1080 or 720) and play it and shoot over the log. Also how is your audio configured?

Here's another log while playing a file with height 720. Still appears to have the same judder. My audio setup is HDMI 2.1 with custom audio devices for my GPU (plughw:1,7). I have tried several combinations of audio config and there are a few that work "analog" with Custom, "hdmi" with custom, etc. None of them seem to have any effect on the judder at 24hz that I am currently seeing.

http://pastebin.com/Gtj0VKzr

Thanks.

I recently came across this post. Is it possible that my problem is inherent to 12.04?

http://forum.xbmc.org/showthread.php?tid=129582&page=2

Have you tried XBMCbuntu to see if that is the case?

xbmcbuntu was my original install before all of this but I had decided to go with a ubuntu with xbmc install instead after some instability with eden on xbmcbuntu. I hadn't gotten to the point of trying out display refresh matching before attempting eden on 12.04.

Heck I would try an even older release (10.0) on a live run.