I'm having this same issue. I'm playing back from a desktop pc that I build to a Samsung TV with 120Hz refresh rate. I hope there's an answer soon. Thanks.
Hello, I have a Samsung multisystem 1080p HDTV (I believe the model number is LA37A550 ) and a new Samsung PC laptop (model number NP-R780-JS01US). Whenever I connect the laptop to the TV via the HDMI cable to play videos that have been downloaded to my computer, they play back very choppy on the TV. They look and play fine on the laptop. The specs for the laptop are:
System Memory(RAM): 4GB
Type of Memory(RAM):DDR3
Hard Drive Type: SATA (5400 rpm)
Computer Hard Drive Size: 500GB
Processor Speed: 2.26GHz
Graphics: NVIDIA GeForce GT 330M
Video Memory: 1GB GDDR3
I initially thought it was the media player, but it happens when I use either Divx, VLC or Windows Media Player.
One thing of note is that there is no choppiness when I contect the computer to the TV via the PC cable pin connect.
Does anyone have any suggestions on how to remedy this situation? Many thanks for all of your help!