Set your player to "Force HDR" and to output everything at 4K
Before I set up my RS1000 last week, I saw some posts about long delays before anything appears on screen due to HDMI negotiation.
I thought nothing of it until I saw that when I started a film I was sitting in darkness for ten seconds, with the sound starting halfway through that period.
I then noticed a question that appeared on screen when starting a film "HDR: Auto or Forced?"
I tracked that down and found out it was coming from my Oppo UDP-203 player.
I asked in the 203 thread what that was about and was told that Forced doesn't convert SDR material to HDR, but with HDR material it sends HDR without first asking the display whether it can handle HDR (and thus needs the player to convert it to SDR).
On a hunch that this might reduce delays due to HDMI negotiation (I already had the Oppo set to output everything at 4K resolution, since Oppos have always been champion upscalers), I set it to Force HDR.
The answer is that setting the player to "Force HDR" and the player to output everything as 4K speeds things up dramatically, since there's no negotiation at all.
What had been a ten second wait to see anything has been cut back to maybe a second after the sound, which itself appears in only about a second. The projector sees that it's getting HDR and quickly changes to that mode, or sees that it's getting SDR and changes to that mode, but there's no "negotiation" between the two devices, and the AVR, over relative capabilities.
If I wasn't looking for the delay, I wouldn't even notice that it was there!
I assume that other players, not just the Oppo, can be set up similarly: to always output as 4K and to always send HDR when it's present.
PS To get the auto switching in the JVC to work to your liking, play an HDR disk and choose your favorite HDR settings in the JVC: (including Frame by Frame or Scene by Scene - I've had no problems with FBF). Next, play an SDR disk and choose your favorite SDR settings for that (I've become a convert to Natural instead of Cinema).
Leave it set to SDR, and the JVC will take care of the rest, auto-switching between your favorite HDR and SDR modes based on what it's getting.
Last edited by Philnick; 11-10-2019 at 10:45 AM.