Originally Posted by zeonstar
I know this is off topic but could you tell me about the DV Bug with the UBK90 and LG C8? I have that exact combo of equipment and am concerned I don’t know about this. Can you link me to some details on it please. Maybe send me a PM. THANKS!
The LG C8 has a bug when playing Dolby Vision content over an HDMI connection. In some scenes, black levels are elevated and you don't get pitch black where you should.
The easiest way to spot it on the LG player is to pop in a Dolby Vision 4K blu ray with a widescreen aspect ratio. When the bug manifests itself, you will see that the black bars are no longer true black. They look grayish, like a cheap LCD. Watch in a dark room and it will be easy to see. If you walk up to the TV while it's happening, you'll see noise in the black bars as well.
On the Apple TV 4K I can confirm it is the Dolby Vision bug and not the content by forcing the same scene to play in HDR10. Then you get perfect blacks.
To bring this back on topic, the Sony X700 uses a special Dolby Vision profile needed to work with the Dolby Vision implementation Sony uses on their TVs. Basically, the player is doing the heavy processing instead of the TV. For some reason, this fixes the Dolby Vision problem on LG sets.
I bought the X800m2 because I'm positive it is using the same DV implementation. Sony wouldn't release a DV player that doesn't work on it's own TVs.
If I'm right, I'll finally be able to enjoy DV Blu Rays. As you know the LG player doesn't let you switch off DV if it senses your TV is compatible. It auto switches and plays HDR10 when that is the only thing available, and that's good. But if a movie has a DV, the player uses that. I was always stuck with elevated blacks.
The x800m2 seems to be just what I needed. Can't wait to get in delivered tomorrow.
Now, if only I could find a solution for DV on the ATV4K...