NUC7PJYH - No signal after after turning TV OFF-ON

[PeterNUC]

Settings:

1. NUC HDMI1 connected to Sony KD-65XE7096 4K TV HDMI2.
2. TV: 'Picture mode'='Game', 'HDMI signal format'='Enhanced format'.
3. Windows: 4K-60Hz-4:4:4 (perfect picture).
4. NUC7PJYH BIOS 0041
5. Graphics driver: https://downloadmirror.intel.com/27809/eng/GFX_WIN10_64_24.20.100.6025.zip https://downloadmirror.intel.com/27809/eng/GFX_WIN10_64_24.20.100.6025.zip

Observation:

1. Turn TV OFF and then ON (via remote power button) => No Signal
2. Unplug HDMI cable and plug back => Image appears, but at 4:2:0 (ugly)
3. Change 'Picture mode' to something else and back to 'Game' => back to 4:4:4

It looks like the only way to restore the connection (at least, partially), is to unplug HDMI cable and plug it back. Is there any way fix the HDMI handshake when TV is powered ON?

[idata]

Peter Golubtsov, We will be more than glad to assist you with this scenario.

There is a newer BIOS version 0042, please install that version on the NUC using the F7 method:

https://www.intel.com/content/www/us/en/support/articles/000005850/mini-pcs.html https://www.intel.com/content/www/us/en/support/articles/000005850/mini-pcs.htmlhttps://downloadcenter.intel.com/download/28014/BIOS-Update-JYGLKCPX-86A-%3Fproduct%3D126137 https://downloadcenter.intel.com/download/28014/BIOS-Update-JYGLKCPX-86A-?product=126137

Also, we can test the Intel graphics driver version 24.20.100.6194:

https://downloadcenter.intel.com/download/27892/Intel-Graphics-Driver-for-Windows-10%3Fproduct%3D126788 https://downloadcenter.intel.com/download/27892/Intel-Graphics-Driver-for-Windows-10?product=126788

Please make sure that you are using an straight HDMI connection and that the HDMI cable version is 1.4

Any questions, please let me know.

Regards,

Alberto R

[PeterNUC]

Alberto R,

Thanks for your advice. I will update the BIOS and the Intel graphics driver, but I might not be able to test it with the Sony TV in a near future since the testing was done in a store.

So, the question is: did you try them with a Sony TV configured as described in my post? If yes, could you please share you results?

By the way, the https://downloadcenter.intel.com/product/126137/Intel-NUC-Kit-NUC7PJYH Downloads for Intel® NUC Kit NUC7PJYH web page still mentions UHD Graphics driver 24.20.100.6025 as the "Latest". Is there any reason why Intel does not mention more recent drivers 24.20.100.6094, 24.20.100.6136, and 24.20.100.6194?

Thank you,

Peter

[n_scott_pearson]

If I had a dollar for everytime this question is asked, I would be a rich man!

It's quite simple. Intel lists (and supports download of) the latest version of the driver that has been fully validated with the NUC in question. When the newer version(s) are fully validated, only then will the latest version for the NUC be updated. As you can see, because of the large number of sightings being tracked (and needing verification), the NUC team has a hard time keeping up with the (much larger) graphics team.

Hope this helps

.. S

[idata]

PeterNUC: Perfect, you are very welcome.

The reason why you can see different graphics driver versions in our web site is because of the search criteria. You can always look for the drivers based on the model of the NUC or based on the graphics controller, in this case Intel® UHD Graphics 605, but all those drivers should work with the NUC.

I tried to replicate the issue using the following hardware/software:

Operating system: Windows 10 64 1803 (OS Build 17134.1)

BIOS: 0042Graphics driver version: 24.20.100.6194TV Model: LG 5UH8500

There was no problem at all, I turned the TV off and on several times, I even switch inputs on the TV and there was no issue, the NUC worked properly.

For further details, on the following link you will find the list of tested peripherals for the Intel® NUC7PJYH, in there you will see different TV models that are fully compatible with the NUC:

http://compatibleproducts.intel.com/ProductDetails/ExportPeripheralInfo%3FmoduleName%3DIntel%25C2%25AE%2520NUC%26productType%3DKits%26productName%3DIntel%25C2%25AE%2520NUC%2520Kit%2520NUC7PJYH http://compatibleproducts.intel.com/ProductDetails/ExportPeripheralInfo?moduleName=Intel%C2%AE%20NUC&productType=Kits&productName=Intel%C2%AE%20NUC%20Kit%20NUC7PJYH

Any questions, please let me know.

Regards,

Alberto R

[PeterNUC]

Scott,

Thanks for the clarification.

I guess, it implies that if you want to play safely - stick to the verified driver, if you want to experiment - go ahead and try all the rest.

Best,

Peter

[PeterNUC]

Alberto R,

The thing is that the NUC behaves very differently with different brands, especially in HDMI 2.0 mode. So, unless you take a Sony 4K TV and enable HDMI 2.0 and 4:4:4 chroma you might not be able to replicate the issue. So, sorry, this test is not representative.

Regarding the compatibility table you mention, it might be good to clarify which settings/scenarios are verified. Specifically, the table contains "Samsung 4K display U28D590D". I had a chance of trying Samsung U28E590D - 4K display (yes, a bit different model) and I can say that it if NOT fully compatible with the NUC - I was not able to get into BIOS. More details in . I was intrigued to see one Sony model (KDL-40NX710) in the table, but oops, it's not 4K.

I think, if Intel Corp. does not have any recent (say, 2017-2018) Sony 4K TVs, than it would be better to drop this case and save our time.

Regards,

Peter

[idata]

Peter Golubtsov: Thank you for that information.

We will do further research on this matter, for us to be able to do that, please provide the information requested on the link below:

/message/319025# 319025 https://communities.intel.com/message/319025

Any questions, please let me know.

Regards,

Alberto R

[PeterNUC]

Alberto R,

Currently I do not have access to the Sony TV. However, here is such info about my system, which I collected for another case:

And the detailed issue description is in the first post:

Best,

Peter

[n_scott_pearson]

Exactly!

...S

[idata]

@PeterNUC: Thank you very much for providing those details.

I can see here that there is another thread and a case already created for you, please keep checking that thread in order to get the proper resolution for this scenario.

Regards,

Alberto R

[PeterNUC]

Alberto R,

That thread describes ANOTHER issue with ANOTHER TV, and even with ANOTHER brand. So, let's not mix them together.

From your answer I understand that Intel Corp. does not have (cannot afford ?) a Sony 4K TV. Otherwise you could just connect it to the NUC and see the result. Poor Intel

Peter

[idata]

@ PeterNUC: Let me apologize for any inconvenience. We will be more than happy to continue with the research on this matter. However, we need for you to fill the information requested previously with the current configuration you have on the NUC describing the details of just this specific issue.

Any questions, please let me know.Regards,Alberto R

[n_scott_pearson]

LOL! Yea, Intel should have samples of every TV out there (all 5000+ of them!). Get real Peter; this simply isn't going to happen. Are you (and everyone else) going to be willing to pay an extra $200 per NUC so that Intel can purchase examples of all of these TVs without the NUC business becoming a money-losing effort? How about an extra $50 per NUC so that Intel can at least purchase examples for each brand? I think not.

...S

[PeterNUC]

Scott,

My point is, that it might be not very productive to investigate a problem, which is specific to a Sony TV without having access to some Sony TV.

I am trying to find at least one 4K TV model, which can do "4K-60Hz-4:4:4" with NUC7PJYH. In this thread, I tried to inform the community That Sony 4K TVs seem to be the most compatible in terms of HDMI 2.0 support, but still have an annoying issue.

Best,

Peter

[PeterNUC]

Alberto R,

Currently I do not have access to the Sony TV (it was an in store testing). Besides, since that time I got my BIOS and drivers updated. So current report with another TV would not reflect my settings at the moment of testing.

Regards,

Peter

[idata]

PeterNUC: I just received an update on this matter, the Intel graphics support 2160p60 (RGB/YUV444) modes on 8-bit panels via HDMI 2.0. However, if the Display has a 10-bit panel then it can default to 2160p60 (RGB/YUV420).

You mentioned that it works at 2160p60 (RGB/YUV444) but after turning the Display off it switches to 2160p60 (RGB/YUV420), which could be happening for several reasons:

1. The TV resets its color mode from Enhanced format/HDMI UHD Color/etc to basic and the driver reads it as such.

2. The handshake causes a new EDID reading that has the new 2160p60 (RGB/YUV420) setting.

This behavior still falls within compatibility, thus we cannot promise a fix can be delivered.

Any questions, please let me know.

Regards,

Alberto R

[PeterNUC]

Hello Alberto R,

Thank you for your message and explanations. I understand that after turning the display/TV off and on the HDMI connection has to be reestablished. Since this is a quite common scenario (e.g.when PC turns off display and TV switches off by itself after certain timeout), one would expect that the picture will just reappear "unharmed". However it does not reappear at all, not even at 420. I can not call that "compatibility". I, definitely, would not want to unplug-and-plug-back HDMI cable and fiddle with TV menu several times a day (every time when I return to my workplace). I'd have to resort to 30Hz (HDMI 1.4) where everything is working fine. It means that using HDMI 2.0 with this NUC is, in fact, not possible. Pity.

Best,

Peter