EDID thread (RTD1619DR players)

I do know quite a lot about it - I helped in development with the Dolby Block and I wrote the original LLDV EDID for them, so honestly, there's no need to tell me how "it is".

But of course we will remain friends - I'm extremely curious to know what the problem is here because it's a new one on me and this stuff interests me immensely - let us know how you get on with the 400 and 300MHz EDIDs.

 

FWIW when I use the supplied BT 2020 EDID setting and use VS10 DV setting with DV or HDR encoded content playing, every time I press stop on the Zidoo remote, for a break or whatever, I encounter the blank/black screen. I have to power cycle the receiver for the screen to display. I have verified this multiple times. However whenever I use some of the other custom EDID's posted by Markswift2023, it works fine. So my conclusion is a) The supplied BT2020 EDID is causing some issues between my receiver and the Z9X or b) There is something wrong with the HDMI cable between the two. However it is a certified 8k cable so not really sure. Anyways I am no expert, just some observations, if it can help someone. I still cannot play back the LLDV settings, but I a moving on, the VS10 DV settings are fine for my purpose, if I play back DV content. For HDR content I am turning off the EDID entirely and just using VS10 for HDR settings. Also my Z9X is far superior both in PQ & SQ to the Nvidia Shield Pro that I was using before, so I am very happy with it.
My equipment chain is zidoo Z9X to Denon 3700h to Sony VPL vw270es.
Cheers,
Sid

 

Custom EDIDs should only be used if you have a specific need for one, for example to limit HDMI bandwidth or to output LLDV to an HDR10 display.

In a lot of cases, particularly with projectors, because there is usually a long HDMI run from the amp to the projector, the cable is borderline capable of transmitting the 594MHz necessary for 60fps Dolby Vision and so if the GUI is presented in DV and the refresh goes to 60fps (ie resolution set to Auto), the display can blank. This does not happen with SDR/HDR because if you have the source setup correctly (4:2:0 10-bit), a 60fps signal will be 371MHz which a damp piece of string can pass.

I only have a 5M HDMI cable between my test amp and Samsung flatscreen and although it's supposed to be, and was sold as, a 600MHz/HDMI2 cable, it is not - so I have to restrict my EDID to 400MHz because I use LLDV. This restricts 60fps DV to 30fps which is 371MHz (like 60fps SDR/HDR).

(all the above is at 4K by the way).

This is possibly what's happening in your case but used correctly, within the capabilities of all the equipment, you should never see this behaviour.

 

Love it!

 

Thanks a lot for the reply Mark, so how is my system able to display DV content when I am not using the LLDV setting? And why is it blanking out only in the LLDV setting? Is there a difference between both with respect to 594mhz and 60 fps?
Please excuse my queries if they sound very basic,I have only have just started using the zidoo, and TBH this is an excellent forum to find all these answers. Maybe there should be a basic section for newbies such as myself, so we can stop cluttering up all these advanced/power user threads with higher end systems.
Cheers,
Sid

 

If you're not using LLDV, VS10 is used to convert DV to HDR10.

LLDV is usually output at 4:2:2 12-bit, which at 23~30fps is only 297MHz and 50~60fps jumps up to the maximum 597MHz.

HDR10 (and SDR) can be output in several ways, but usually 4:4:4 10-bit at 23~30fps and 4:2:0 10-bit at 50~60fps which in both cases is 371MHz.

If you are using the LLDV EDID, have HDR set to LLDV, Auto Framerate on and Auto Resolution on, the GUI will display in LLDV at 4K60 which is the full 597MHz. I'm only guessing here that this is marginally too much bandwidth for your setup although I can't think what else would cause it.

If you use LLDV, set the Resolution to 4K23 then the GUI will also be at 371MHz and see if that cures it. (the caveat there is that if this is the case and you play some 4K60 content, the display could blank but this is solvable with a 400MHz EDID)

 

Hello

I come from this topic http://forum.zidoo.tv/index.php?thr...vc-iso-files-not-working-in-zdmc.95368/page-2

To recap my problem and it's current solution, I have a Xiaomi Mijia 4k 1S projector. I was having trouble to play 3D ISO, each time the projector went to a black screen and no audio (lost signal)
After a lot of messing around, I finally found out that changing the EDID to "SAMSUNG QA55Q60RA..." did the trick... When I play the Gravity 3D ISO , I was prompted a message telling me the TV is not compatible then I click "continue" and the 3D works flawlessly.

3dBLUFF helped me a lot, and told me : "The end conclusion is that the projector manufacturer dropped support for 3D out of EDID. Zidoo was not sending 3D signal as not compatible with the projector."

My question is : is it okay if I keep using the samsung edid, or do I need to download on of your custom EDID ? (I am still trying to figure out what exactly is a EDID ^^)

Thank you

 

Using the Samsung EDID isn't going to hurt but it doesn't support many audio codecs and isn't ideal so it depends on the rest of your equipment and what that's capable of.

 

The 400Mhz EDID does not show the LLDV in the settings, is there another EDID which has 400mhz plus LLDV.
Cheers,
Sid

 

This one is 400MHz LLDV and HDR10:

https://mega.nz/file/wbBSTYYb#ngZ4_LQb6SIDjEBbSdV77T59Rl9kO5dbGQjmbtoHqNY

I've also updated the first post with it..

 

This worked, and DV picture quality/ and overall PQ (of HDR 10) is significantly better. Anyone who experiences blank/black screen, especially with LLDV setting, should definitely try this out.
Many thanks @Markswift2003.
Cheers,
Sid

 

No problem, but what that means is that something in your HDMI chain will not allow 600MHz/18GBps. As I said earlier, only a slight problem for 60fps DV - everything else will be fine.

 

@Markswift2003 Hi Mark, any chance I could ask a favour please? Could you strip out the DV compatability info from my EDID please? Just the DV stuff out.

Cheers bud.

 

There you go - don't forget to rename back to .bin

 

@Markswift2003 Thanks Mark, much appraciated.

UPDATE = prefect! Thanks again.

 

Curious - why do you want to do that?

 

Ok, I thought you might ask. Whilst my Amp can "do" DV, there's something screwy going on (I've seen it before when years ago they retro added HDR with an FW upgrade to my amp back then, even though the HDMI port was 1.4).

If I use the 400MHz or 600MHz edid's, and use the VS10 engine for both HDR and DV, HDR is much duller/flater than normall passthrough without a custom edid.

So, I wanted to check that If I took my own edid, but removed the DV stuff, what difference that would make. Sure enough (for whatever reason, screwy or not), the difference with my own edidted EDID was night and day - I have freinds over at the moment, and they were like Fxxxk Me.....was just the iceing on the cake!

Thanks again.

 

DV was designed to use HDMI1.4 (at least it was for 23~30fps) which is why it uses 8-bit RGB HDMI tunneling in TV Led and 12-bit 4:2:2 in LLDV, both of which are 297MHz; 3MHz below the HDMI1.4 limit.

The amp can't "do" anything to a DV signal so my guess is the screwiness is down to the TV, but hell, DV is just HDR10 with bells on, so if HDR10 looks better, definitely use that!

 

Yeah, understood re DV and 1.4, but HDR BT2020 "should" need 2.0+. Like I said, I've been here before with Yamaha amps. Anyways, my edid minus DV info works a charm now using VS10 for HDR and DV, so one happy camper.

Thanks again.

 

Markswift2003,

Thank you very much for the great job! And please sorry for my not native English.

My target is to use LLDV playback. Especially for DV. My system includes Zidoo Z9X > Denon AVR X1300H > projector Epson EH-TW7100 (EU version of Epson HC 3800). Zidoo has the latest firmware and “Recommended Settings». CEC is activated and works fine.

I was trying to check several your custom EDID including 300MHz 1000nit LLDV. I did not compare the picture quality, just checked the technical possibility. MKV files with SD, HDR10 and DV (profile 7 STDL) were used for test. The projector has been manually switched into its standard HDR10 mode.

In case of mkv with DV Zidoo displays DV logo (left corner of screen) and on-screen information "output signal: YUV 4:2:2 12bit DV". It also looks like correct. But projector’s its own information displays “Dynamic Range: HDR10 / Signal status: SDR” and “Color Format: BT.2020 SDR”. My question: is it correct? I assume that there is something wrong with "SDR" and both “Color format” and “Signal status” should be “HDR10”. When I use VS10 for DV (without custom EDID) “Color format” and “Signal status” is HDR10 always.

Could you please check this Epson model's EDID? Both EDID (single projector and projector + AVR) attached to my message. Thank you in advance!