EDID thread (RTD1619DR players)

I don't use any HDFURY box so I'm not capable of capturing anything. .

Other than that, all EDIDs I'm using are from the pack that you have provided with the exception of the 1K file which I believe I took from a post in this thread from about a year ago. I believe it was an EDID that you were personally using at the time. .

 

I don't mean capture one, send the files you're using - I'm sure I wrote them but I can also make mistakes so just wanted to check that the value of TMIN_PQ is not above zero.

These projectors will only do FFTB if the video level is zero, anything above that and the laser is on. FFTB requires the laser to modulate low but then turn off completely. There's no reason I can think of why a 1000nit EDID behaves any different to a 10000nit EDID at the bottom end - a video level of zero is a video level of zero and that's defined by TMIN_PQ, not TMAX_PQ.

I've seen TVs with poorly done EDID Dolby Blocks where TMIN_PQ is say 0.001nits or even 0.050nits on one occasion and for some reason, even though that's the actual performance level of the panel, setting anything other than 0.000 raises the black floor of a DV signal. So I'm just wondering if one of those EDIDs is like that. Can't think why, but worth checking.

I'll try that Weapons sequence later on 1000 and 10000 to see if I can replicate..

 

I'm interrupting your conversation, and if you could check my two edits to see if they're correct:
- one for the JVC : https://mega.nz/file/pX4QRSCJ#93cbUv6Qh4ViewCohbpcffZ4wgolizGrUbCuzwxzGzI
- one for the Samsung in HDR10+ : I can't find the link anymore?
Personally, I stick with 3000, because above that the image is too harsh and below that it's washed out.
Thanks in advance.

 

Yes, those EDIDs are fine - all have TMAX-PQ set to zero.

The only way I can think a custom EDID that came from me wouldn't be set to zero is if it originated from a user's TV that had the same and I'd made adjustments for something...

 

OK, thank you very much... Your edits are of great help to me!

 

Ok, to satisfy my curiosity, I tested that scene from Weapons.

Initially, all I changed was the EDID each time - I can switch on the fly from my app so it takes a second or so to switch EDID and restart the file (I'm using an HDFury for the EDIDs).

My PJ has 4 Dynamic Control settings for laser modulation - Off, Low, High and Balanced. I'm using High which I believe works like Mode 3 on your model.

There was no difference in laser dimming or shut off with either 1000nits, 4000nits or 10000nits EDIDs. The laser dimmed to minimum after the studio idents and then shut off completely immediately after the narrator says "This is a true story"

Here's a really bad video of it

https://streamable.com/k92ojr

This was exactly the same in all three cases and the laser stays off until the school scene starts. The easiest way to see this is look at the lens (don't look directly down it for obvious reasons ) - you can easily see the laser shut down.

As I say, this is to be expected because each of those EDIDs has TMIN_PQ set to zero and the top end has no bearing whatsoever - and that's the only difference with those three EDIDs - TMAX_PQ changes, but absolutely nothing else.

Then it got weird.

I tested the other laser modes.

As expected, "Balanced" took an extra couple of seconds for the laser to shut down completely. As I say, that's expected because "Balanced" is supposed to be a bit of a tradeoff.

However, what I didn't expect was setting Dynamic Control to "Low" caused the minimum laser level to drop to almost nothing and the laser shut off at the same point it did in "High". So immediately after the second studio ident has finished (frame 590 according to the RPU) and video level drops to zero, the laser level drops way less than "High" before shutting off completely, so the effect is more pronounced.

My understanding is that "High" is supposed to be more aggressive than "Low" so you wouldn't expect that.

Scratching my head over this one.

 

Thanks so much for all your hard work looking into this Mark...
I'm embarrassed to admit that in doing a search on these threads has revealed that you and I have been down this road before...LOL..

Due to numerous concussions, my memory is terrible. I'm not generally a tinkerer once I get my equipment dialed in... but I've made 2 major upgrades in the last year ( JVC 570 to NZ7 and Denon 6700 to A1H) which means I've gone through this process a couple of times and you've helped me more than a couple. ..

Near as I can tell, I downloaded the 1000 nit curve from a post where you included it alongside a 400 nit curve. ..The 4000 nit curve comes from a pack that you uploaded to another thread...I will test the 1000 nit EDID from that pack to see if I get different results than what I've seen so far. .

Also, I'm quite certain that the MODE 3 on my series JVC corresponds to BALANCED on yours...When it was released there was only OFF, LOW and HIGH ...a later firmware (3.0) changed these to modes 1 and 2 respectively and introduced a mode 3 which was meant to be the middle ground...have to love JVCs vernacular. ..lol..

 

I think we've been down many roads, here and on AVS?

Yeah - I'm the same - once it's dialled in I leave well alone - but these discussions have peaked my interest which is always a good thing - always good to learn new stuff!

So custom curves are something we don't really need any more with Frame Adapt HDR - bit of a shame, but things move on, and in this case, definitely for the better.

I'm only going on this post when I say that "High" is like "Mode 3":

Official JVC RS4200/NZ900 - RS3200/NZ800 - Owners Thread | Page 175 | AVS Forum

- but given my experience today with "Low", I think something's changed. And yeah JVC vernacular is on a par with Denon's!

In the old days we had the BatPig Denon to English Dictionary - could really do with that for JVC...

 

I haven't read any posts from BatPig in quite a while on AVS.. bummer.. as he was super knowledgeable.. any idea what happened with him?

 

Not a clue, he just disappeared.

 

Hi Markswift2003 i was wondering if when you get a chance can you take a look at my edid for my new tv.On my old tv which was a lg nano90 you made some changes for dolby vision and i enjoyed the slight change in highlights.I was just wondering if you look at my new edid can you see anything that might be wrong with it or any improvement that might be able to be made.Thanks a again for the help you offer me and others on here.

also the chain of of hardware is 2025 tcl qm7k/z1000 pro with upgraded power supply and a anthem mrx720

 

I’m afk atm - What is it you think is wrong?

 

Dont think anything is wrong but with my last tv i was having black level issues and you looked at my edid and noticed something with the peak brightness i think and you made an adjustment which made my highlights a little more detailed.

 

Gotcha - Well this one has Min Nits as 0.005 which should reflect the ability of the panel and if the panel handles the signal based on that EDID properly, shouldn't be detrimental.

However, we know that's not always the case, so attached is the same EDID with that value set to zero - if you see raised blacks in Dolby Vision (only), try this EDID.

 

will check when i get home.thanks again

off the top my head i dont recall an issue with raised blacks in dolby vision.should i just re check with dolby vision black level pattern for both edid and see which is closest?

 

Theoretically there should be no issue - the EDID defines the specification of the the display so the source puts out a signal compatible with that display but as we've seen, sometimes the display EDID is just plain wrong, even on big name brands like LG.

But if I'm honest, I'd kind of trust brands like TCL and Hisense etc to get it right more than I would the big brands because they're paying a lot of attention to details these days in order to compete and they're getting it right!

 

I dont have raised black levels i guess thats a good thing and wont be needing the edid you gave me.thanks for looking into it for me.

 

Hello. Could someone please advise me? I use ZIDOO 8K and a Benq W4100i projector. The VS10 engine is absolutely perfect. Neither the W4000i nor the W4100i projector dont supports DV, but after turning on the VS10 engine, it's absolutely great. The problem is that I think the conversion from HDR to SDR VS10 is really not very good The conversion is very dark, which is not good at all. I also use VS10 for SDR, and it's perfect. The contrast has increased a lot, which is great.
DV via VS10 is also great, but as I said, HDR is not so great I haven't tried HDR10+ yet. Could someone please help me? Thank you very much. Yes, I use a Denon AVR-X2800H DAB AV amplifier (if it's not a fault with that). Thank you in advance.

 

First off, you are posting in the wrong sub forum... you should be posting this question in the AML S928X forum section.... 2ndly, you would be the first person that I have heard that claims that VS10 does a poor job converting HDR to SDR.