EDID thread (AML S928X players)

Like their predecessors, the AMLogic 8K Zidoo boxes allow the selection or upload of a Custom EDID.

Amongst many other things, a custom EDID allows the Zidoos to present an LLDV output with colour primaries that a non-LLDV display will understand.

Effectively this allows true Player Led Dolby Vision to be viewed on a non Dolby Vision display since Player Led processing allows the dynamic tone mapping to happen in the player and the display receives a static gamma according to the St.2084 standard - essentially an HDR10 signal that has had dynamic tone mapping pre-applied to the video signal.

You can even tailor this tone mapping to the display brightness by adjusting the max nits level in the Dolby block in the EDID.

In order to use the LLDV hack you must be able to manually select HDR in the display (this is quite common for projectors but not with TVs) or use an HDFury device to spoof the outgoing HDR message.

The AMLogic players have 6 new Custom EDIDs included:


1. 4K60Hz 400nit BT.2020 LLDV

This allows you to spoof LLDV compatibility in the BT.2020 colour space with maximum target of 400nits before the DV engine starts to tone map.
This is useful for low nit displays (eg projectors) so that more of the tone mapping duties are carried out by the VS10 engine before the display has to take over.

2. 4K60Hz 1000nit BT.2020 LLDV

Same as above but with 1000nit target - this is useful for spoofing LLDV on displays with a maximum brightness around 1000nits, which is probably most current flatscreen displays.

3. 4K60Hz BT.2020 STD LLDV

This is a BT.2020 EDID supporting both TV Led and Player Led DV for test purposes.
Note that a DV display is required for TV Led Dolby Vision (it cannot be spoofed).

4. 4K60Hz BT.2020 HDR10+

This is an HDR10+ EDID for test purposes.
Note that an HDR10+ display is required for HDR10+ (it cannot be spoofed).

5. 4K60Hz BT.2020 HDR10

This is an HDR10 EDID for those who wish to remove Dolby Vision from a Dolby Vision display.

6. 4K60Hz Rec.709 SDR

This is a Rec.709 only EDID - useful for those who wish to remove all HDR support from their displays - handy for some projector owners.



And here are a few more EDIDs for the experimentalists.


BT.2020 1,000nit LLDV and HDR10+

https://mega.nz/file/4KRkmBKY#3RIQE99B5OjJAeomV0b3acwQ99Lgjg4Ho4dKYiRaMOA


BT.2020 4,000nit LLDV

https://mega.nz/file/pOYUTCSL#Z1f0C692iwes4kff6obO0REwu2ig7w1X7pWE2Vv9bl4


BT.2020 10,000nit LLDV

https://mega.nz/file/5bBnybCB#7MNt2VbdgI-AFvosDJirvAIXHNAtjQ9DKCcjq0mZeYA


400MHz BT.2020 HDR10

https://mega.nz/file/BPAiTbza#hZHGpHFp5LM3D95LLZoFOHwbQAQT9HSQ8g_KtB9dLMU

(this one is useful if you have a long cable that won't support a full 600MHz/18GBps signal)


400MHz BT.2020 HDR10+

https://mega.nz/file/tbBVCAKK#PgeLmQXCQ9P3h1UhJBAKuA2xSaovsdWgcgxKb_pELMI


400MHz BT.2020 1000nit LLDV

https://mega.nz/file/9epnxYBS#iZLeko_OxCHOabfpmFXmvCs0QgZQUKZ-oX1nuRfgCug


300MHz SDR Rec.709 (HDMI 1.4)

https://mega.nz/file/UeZz2aZK#Z2VGBGgosc38hg1dxURJzKAENOmO3Icrrzo3QhkgiLA


BT.2020 400nit LLDV HDR10+

https://mega.nz/file/Jbg3ARBR#RAexfo_gx9roeuw6ppbx5g3BqwWM6aCEDivx_rzhYwk


BT.2020 LLDV 100nit - 10,000nit EDID Collection

https://mega.nz/file/UOgSiTZD#luMazwJ6HycVHHyANTyg-_FF1j8iv1ALOyBYwtJT5Ng

 

Appreciate the info.

 

Always appreciated this information!
I assume the majority of the edids are the same as those in the previous model?

 

Hello, please could you create 8K60 BT.2020 400nit LLDV and 100nit EDIDs ?

 

I never understood why Zidoo keeps doing EDID exchanges once connected via HDMI. The response should be kept cached and next re-used where and when needed.
The Dune players do so and with positive results: No varying results and no unneeded HDMI interruptions.

 

Not sure what you mean?

 

As long as the media player remains connected to the AMP and next TV there is no need for any subsequent EDID exchanges. Only one is essential at the moment of the initial connection (the Dune method).

The Zidoo does it when changing resolutions or changing 2CH/MCH for audio. Always with an interruption of the HDMI connection signal and for audio sometimes with refusing MCH erroneously next.

 

If I understand you correctly, that's HDMI resync.

EDID is read on boot and box behaviour only changes if there's a subsequent change of EDID (either internally using Custom EDID or externally).

A resync is sent on a change of Resolution and/or HDR Mode and/or Frame Rate.

Behaviour of the Dunes and Zidoos are the same in this respect.

I assume you're talking more about audio than video here.

 

No, as listed above, 6 new EDIDs are included.

 

The Dune does not flicker when doing a resync. No idea how or why?

Yes I see it above all with Audio. My AMP clearly looses the HDMI connection and MCH does not always kick in. It is inconsistent with above all DSD Music (Alpha) which is extremely frustrating.
Lets see how the new box works there.

 

I just tested a Dune 8K and the Z9X 8K and both handled HDMI resyncs exactly the same for framerate, resolution and HDR modes (tested each individually).

The only difference seems to be that the Dune has that stupid thing where you can't go up in resolution - ie if the UI is set to 1080p, the max resolution for content is 1080p - Mad!!

 

For me the long HDMI resync is the worst issue I can find in both boxes, Z9X and Z9X Pro.... really frustrating!!

 

HA!!! damn I need a 3000 nits LLDV for my projo.
Will you be able to make one for me again??
Thanks in advance !

 

You can still load custom EDIDs so you can use the one you're using now.

 

By the way, why is there a difference in the eids of the two devices?

 

Ah OK we misunderstood......
So same personalized edits as those before?

 

Yes of course - you can add your own EDIDs.

I thought it would be better to provide some more "generic" EDIDs for the new boxes rather than ones for specific TVs as we have with the earlier ones.

 

The Dune Video setup works differently with all their models. One is asked to setup the "Maximum" resolution supported (clearly labeled as such) which is indeed then also used for the UI. That value will be used next for adaptive resolution as it allows then all resolutions below that value to be set automatically.

Once known not a problem just different than how Zidoo does it. It assures that all resolutions will work faultless next which is not a bad concept. I e.g. needed a better quality HDMI cable for just getting the UI menu to work stable set at 4K.

 

Yes, it's always worked like that - as I say, stupid!

 

May I disagree here. I think it is just smarter detecting any potential HDMI-cable/TV limitations during setup immediately (regardless what EDID does/reports next).