EDID thread (AML S928X players)

excuse me mark.... just ask you information in the last weeks about what buy from zx9 pro and 8k....maybe you remember.

in not a newbie ,but either a pro..... im reading all thread about zidoo 8k ,cause i want to buy soon.... but
i have actually a lg g4 oled.....
now im reading this thread ,and its very difficult to me.... (i came from a himedia q10pro with only hdr10)
dont understand... this EDID ,you have to set manually depends tv or projector model?
or is all automatic? cause i like that zidoo set the correct EDID auto when i connect with hdmi 2.1 port in my tv....
and let me choose only if in the video file are both hdr10 and dolby (but i think dolby is better so the first choice.....)
is it correct or no? and for the max Nits that TV(or projector) can show is also to set manually or is auto? cause i think its not good if the EDID is set to a max nits ,much lower than the tv can....
can you explain like you explain to a child ?

 

No, you do not have to set the EDID manually - it is all automatic.

The EDID only tells the player the video and audio capabilities of the connected amp and/or display.

But you can use a custom EDID if you want to change the player's behaviour - for example, I use it to display native Dolby Vision on a Samsung TV and also on my projector.

For most people it is not needed.

 

Which custom EDID is recommended for the Zidoo Z9X 8K and a JVC NZ8 Projector? It looks like the best options are the 400Nit EDID and the 1000Nit EDID. Any thoughts? Thanks in advance

 

Here are my thoughts...

I used to use a 400nit on my X7000 because that had a static gamma I'd designed and theory is that anything above 400nits was tone mapped by the Dolby processor and anything below by the projector and with diffuse white now defined as 200nits in Dolby Vision, the projector didn't have to do a lot.

Having changed recently for an NZ800, I initially tried the 400nit EDID but soon found that the 1000nit fared better with dynamic tone mapping in the projector. I guess the mix of tone mapping in the PJ and then in the Dolby processing just didn't work as well.

You'd wonder what the Dolby processor has left to do at 1000nits, but trims are still used, so there's some work left for it.

So my expectation is that you'll find the 1000nit one better with DTM on your projector, but I'd still try them both.

I mean, there's even an argument for going full tilt and using 10,000nits with DTM.

Must try that...

 

Are there any benefits of using the CMv4.0 EDIDs configuring the Zidoo with LLDV and a projector like the JVC NZ8?

 

Only if you use Dolby Vision content that has CMv4.0.

Bear in mind that CMv4.0 is NOT used in UHD Bluray.

Any UHD Bluray files that purport to contain CMv4.0 have used the DV metadata from a streamed version of the deliverable and let me tell you, that's not a great idea.

Hybrids? FFS.

But belt and braces, if you have an AML Zidoo box spitting out LLDV (won't work with Dune btw), use a CMv4.0 EDID then at least if you play content with CMv4.0, it will be used and CMv2.9 content will be played fine too - it's all backwards compatible.

Isn't Dolby Vision an arse?

How the hell the Dune people are supposed to cope with all this, I have no idea!!!

 

Thanks for the reply Mark!

 

Thanks, Mark. Let me give the 1000nit EDID and compare with the 400. We usually run the JVC NZ8 full throttle, which is why I thought the 1000Nit EDID might be better. I'll report back.

 

I'll be very interested to hear your opinion - I've run an X7000 for nearly a decade on the same settings and the results have been incredible, but I'm still figuring out the settings for the NZ800 - I'm pretty much dialed in now, but feedback from other people is so important in this hobby.

 

Hello Mark!

Actually I'm perfectly satisfied with my Z9X 8K. But of course I'm always trying to improve.
I would need a custom EDID with these parameters: 4K60 RGB 12bit, full sound.
Are these infos enough for you to build something?

Many thanks in advance,
Winnie

 

Sorry, I forgot - Colorspace would be REC709

 

Mark, the 1000Nit EDID make a noticeable (positive) difference with my JVC NZ8 projector. As noted at the start of this thread, using this Custom EDID requires the user to manually change the Mode in the projector (instead of leaving it on Auto).. FWIW, we've noticed an overall improvement in the image quality of just about every video we've thrown at the Z9X 8K from 1080p through 4K. The only "odd" quirk is some 1080p mkv files are converted to 8K, but other 4K mkv files are not. Perhaps I'm missing a step, but so far no complaints! Thanks for your help.

 

Personally on my NZ7 in LLDV, I tried all the edits from 100 to 10,000 and I stopped on the 4000 nits with "framadapt" deactivating and gamma adjustments on test patterns and since then satisfied whatever the video played!!!!

 

If you post your EDID I'll have a look at it but if it's a 4K display it should already support that.

 

Great! I've been using it for a while now on the NZ800 and I'd have to agree with you.

Not sure what you mean about converting to 8K - the EDID doesn't support 8K and obviously the Zidoo only supports 4K - so I guess you have e-shift on which would affect all content?

I turn e-shift off - seems a bit pointless when you have native 4K and 4K content.

 

Do I understand that correctly - do you have Frame Adapt switched off??

 

Yes and I adjust the gamma manually!

 

Sorry, I forgot - Colorspace would be REC709

On the Zidoo I'm using the 4KRec709 Custom EDID. Output is set to prefer RGB 12bit. Also the connected Integral 2 is set to RGB 12bit. But the Zidoo only puts out 8bit...

 

Ok - interesting.

So obviously at 4000nits in the Dolby Block you're handing off all the tone mapping to the projector and using a static gamma curve to do it - why don't you like DTM?

Genuinely interested - so far I've found the best picture from 1000nit EDID and DTM on frame by frame. I haven't tried 4000nit as most content doesn't have anything that high and if it does, it's fleeting at best.

But I will try 4000 at some point.

 

I presume you're talking about the UI?

If you set to 4K60 and use RGB the output has to be 8-bit - there is no 10 or 12-bit RGB mode at 4K60.

4K23~30 is fine at 12-bit RGB.

Stick to the recommended settings of 4:2:0 10-bit for 4K60 and 4:4:4 10-bit for 4K23~30 as that's closer to how the content is encoded - In the case of 4K60, it's exactly how the content is encoded.

You're not gaining anything with RGB (4:4:4 is lossless too) and in fact you're losing out big time at 60Hz.