Originally Posted by thegam3
weird, cause on my TV whenever i play a movie the motion problem goes away if i put it on 24hz and turn ON Real Cinema.
this is using PS3 blu ray player and my PC's Blu ray players
but the motion lag is always there when i watch a video that isnt a blu ray. so if i watch a downloaded 720p TV Show it will have the stutter effect, also when using xbox. i will try the 720p option
At least two of the "keys" seems to be it can be remedied by going to 720p with some input devices/source and it seems if the source is either a game system,cable box, or HTPC feeding a 1080 signal then the stuttering may occur.
It will be interesting if Henry can verify if his LG Blu-ray player does it. I Don't think it will, but if it does it may have to do with a particular main board rev level. The reason I say that is because my 42LD550 exhibits no stutter with 4 different Blu-ray players even at 1080p 24fps. I do get something that looks like occasional frame drops with my HTPC, but no video "slow down- speedup" and I attribute the frame drop to my relative slow 3mbps (1.9mbps to 2.3mbps) DSL speed.
I still believe it has something to do also, at least with some LD sub models, with feeding a 1080p 60HZ signal to the TV. This was not really a standard HDTV signal format. It also seems to be linked with the fact we have 120HZ panels, so it may have to do with faulty implementation of panel refresh verses input signal frame rate. In other words, the panel refresh (120HZ) is not syncing quite right with the FRAME rate of either 24fps and with some 60fps sources. Remember. . . Panel Refresh is not the same thing as input signal Frame Rate. . . but they are related in that the TV must be able to somehow match the two for proper display. This is a legacy leftover form CRT days when frame rate essentially WAS the same as CRT SCAN RATE. Since fixed pixel displays no longer "scan" an image onto the screen. Instead, the input video is processed into a digital bit stream, loaded into a memory buffer , and subsequently delivered as a complete picture "frame" in real time. But what if the overhead between this processing is not fast enough to keep up with the incoming analog or digital video signal? Then the TV might fail to process one or more frames now and then, till it catches up. . . resulting in a "stutter" or lost frame image. Well. . . this is just my opinion based on my understanding of how digital TVs now operate vs how they USED to operate.