Originally Posted by Heuer
It was an issue for me on a 65" Viera plasma. The opening sequence from Cowboys and Aliens is the definitive test; a long slow pan across the desert. On my system the picture jerked several times. I got around it by installing a GT430, tweaking/hacking the custom resolutions to get it to use 23.976 exactly and using Reclock. I now get liquid pans in the C&A sequence and in all other material. Takes a fair bit of fiddling and time to get right though so if you do not notice it in that test then don't bother. Unfortunately when you have seen it happen once you become hyper sensitive to it. My wife complained vociferously about my constant meddling with the HTPC ("it was OK as it was, leave it alone") so I switched the fix off, showed her the C&A sequence and let her get on with viewing something else. Within an hour she was moaning about picture judder
and we are now back to smooth running. Unfortunately she now spots judder on recorded TV programme's and there is nothing I can do about that!
This is present in all films and as I have said is present in all types of hardware (Intel/ATI/NVidia, etc) unless you go to great lengths to try to minimize it like you have done.
You are also from the UK where your TV, unlike those of us in the States, does not have judder. All of us in the US have this and have had it since the day we were born.
I also find it interesting how people describe the "24p bug". I have seen it described as the picture speeding up for a split second, slowing down for a split second, "skipping" for a split second, "pausing" for a split second, motion judder only noticeable on fast sequences, motion judder only noticeable on slow sequences, motion judder constantly noticeable, tearing, macroblocking, etc etc etc. In the end I really question how much people notice anything, if at all, and when they do how many of them quick quickly blame the "24p bug" when its clearly something else.
Consider me a guy who thinks this is WAY overhyped. Just watch the damn movie with the iGPU to start. Enjoy the movie as you always have and don't go out of your way trying to nitpick and find every little flaw that you can. However, if despite all of this you notice something is off then (and only then) add a discrete card, reclock, hours of tinkering, etc.
Your example is classic. Had you not read AVS and been hyper aware of this issue its likely that you (and subsequently your wife) might have never noticed this "issue" and just enjoyed your media and your HTPC.
This is probably the best discussion I have ever seen on the issue:The Big Judder Problem and the Overhyping of 24p