Originally Posted by Otis52
I can confirm that there are occasional issues with automatically turning on HDR with at least one disc. I had a ticket open with Sony, and received a phone reply yesterday that engineers are aware of the problem and it might be fixed in a future update. In my case, it's only a problem when the disc is recorded in 4k/60p with HDR, and only when routed through my receiver.
Here's a summary of what I've found (note I also own the Samsung K8500 player):
1 - On my LG 65UH8500, with cables routed through my 4k/60p compatible Yamaha RX-A1060 AVR, all 4k/24p discs I've tried so far turn on HDR automatically and play fine. The same is true of the Samsung player.
2 - With a 4k/60p HDR disc (Billy Lynn's...), the Samsung will automatically enable HDR on the TV, and before the firmware update, the Sony X800 would not. Same cables. Could not even manually force HDR on the Sony, as it didn't even recognize HDR on the disc.
3- After the firmware update, the Sony now recognizes HDR on the disc, but shows in its display "HDR-SDR" and in the Options menu has the slider bar, as if it's sending an HDR signal to a non-HDR capable display. Color is more saturated, but not true HDR. The Samsung player, same cables, same AVR, works fine.
4- Tried connecting the x800 directly to the TV input, not going through the receiver, and the disc now plays correctly. I would attribute this to the cables, but they are certified 18gb, and again, the Samsung player works correctly through the receiver.
So, the problem seems to be some incompatibility between the Sony at 4k/60p and the Yamaha AVR. I will keep the x800, as everything else about it is better than the Samsung: quiet, smooth disc operation, SACD and DVD-Audio compatibility, handles hi-res DNLA files from my music server well. Streaming will get there with future updates, but I use the LG TV apps for streaming anyway.
I have ordered new certified cables just in case there's something wrong with the current ones, and will again try going through the AVR when I receive them.
Thanks for the information. I just picked up the UBP-X800 this weekend at BesBuy. I have a 65" Samsung KS8000 and a Yamaha RX-A750. I was using an Xbox One S in HDR mode with full 4K/HDR compatibility for months. I only bought the UBP-X800 due to the excellent reviews, and some references to it offering a viewing experience compared to the Xbox One S for UHD Blu-Rays.
Of course when I came home and swapped the Xbox One S with the UBP-X800, I was confused as to why I had no video but could hear audio. I was using the same HDMI cables that were working with the Xbox One S w/ 4K & HDR. I remembered having to change the HDMI mode on my Yamaha AVR from "Mode 2" (outputs 4K at 4:2:0) to "Mode 1" (Outputs in 4:4:4, 4:2:2, or 4:2:0) to get HDR working on the Xbox One S and I confirmed the setting was still correctly set, yet I still got no video when Samsung's "Deep Color" option was enabled. It's my understanding the "Deep Color" is required for HDR support, so simply disabling it wasn't an option for me. I ended up temporarily plugging the UBP-X800 directly into the TV (bypassing the AVR for video) as a workaround. However, this isn't a good long-term solution as everything is in a Media closet about 25 feet from the TV, so I prefer to keep everything in that closet and pipe it using the 18.2Gbps certified HDMI cable output between the AVR and the TV.
Long story short, it sounds like there's a common theme here with Yamaha AVRs and the Sony UBP-X800. The only difference is that I couldn't even display the menus when routed through the receiver with Samsung Deep Color / UHD Color setting enabled. Hopefully this gets fixed soon, as my fiancee and I both noticed a significant improvement when switching to the Sony for both 1080P and UHD Blu-Ray content, plus the sounds seems a lot fuller.