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OWeis
Beginner
2,762 Views

Intel NUC7PJYH no HDMI Signal on LG TV

I have a NUC7PJYH and two LG TVs an older LG 55LN5758 1080p Set where the NUC works without problems and a new LG 49SJ800V UHD where the NUC shows no signal at all. HDMI Cables are checked and various types and brands where connected. Can anyone help me to get a signal on my LG UHD ?

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15 Replies
idata
Community Manager
449 Views

Hello premutos888

 

Thank you for contacting us.

 

I understand that you are experiencing signal with your Intel® NUC Kit NUC7PJYH and your new New LG 49SJ800V UHD.

 

In order for me to assist you better, please provide me with the graphic report that the Intel® Graphics Drivers will generate. To attach a file, you must click the "Attach" option on the bottom right-hand corner of the response box.

 

https://www.intel.com/content/www/us/en/support/articles/000005848/graphics-drivers.html https://www.intel.com/content/www/us/en/support/articles/000005848/graphics-drivers.html

 

Please generate the report with both monitors connected at the same time, even if the second one does not display any image.

 

As well please make sure with the TV manufacturer that there is no pending firmware updates for your unit.

 

Pease make sure that Monitor input source is not set wrong; if the monitor or TV has multiple video inputs, make sure you select the correct source. This selection is usually made through an INPUT or SOURCE option on the display's remote control device.

 

I hope to hear from you soon.

 

Best Regards,

 

Diego S.

 

OWeis
Beginner
449 Views

Hi Diego thanks for your answer. Ok things have changed a little bit i have now picture in Windows but i cant see the NUC splash screen and no BIOS. Both TVs at the same time is not possible cause they are wall mounted in seperate rooms. Here is the report from the SJ800 with the latest firmware. Thanks in advance.

idata
Community Manager
449 Views

Hello premutos888

 

Thank you for your response.

 

In this case, the unit might not be displaying the BIOS for a couple of reasons.

 

The cable that is being utilized: are you connecting the unit with a straight cable or an adapter?

 

Have you tried to repeatedly press F2 when the unit is booting?

 

Another reason could be that fast boot somehow got enabled; you can disable this option by following the instructions on this link:

 

https://www.intel.com/content/www/us/en/support/articles/000006699/mini-pcs.html https://www.intel.com/content/www/us/en/support/articles/000006699/mini-pcs.html

 

Please let us know the outcome.

 

I hope this helps,

 

Best Regards,

 

Diego S.

 

OWeis
Beginner
449 Views

Hi Diego

The NUC is connected direct HDMI to HDMI with a HAMA Highspeed Cable so no adapters. F2 is being pressed several times fast Boot is disabled. When i connect the PC to another TV there is the splash screen and the BIOS showing so there is nothing wrong.

idata
Community Manager
449 Views

Hello premutos888

 

Thank you for your response.

 

 

I really appreciate the information provided by you on this thread, it is actually pretty important in order to perform a deeper research regarding the issue.

 

Based on your last post, the fact that the unit works perfectly in another TV, and that you are not using any dongle or adapter was a little bit confusing, especially because your LG 49SJ800V UHD is able to display image, but unable to show the BIOS.

 

While investigating the TV, we found out based on LG's webpage that your unit does not support 1024x768, but only 3840 x 2160 among other resolutions.

 

You can check that here:

 

http://www.lg.com/uk/tvs/lg-49SJ800V http://www.lg.com/uk/tvs/lg-49SJ800V

 

If you're using an HDMI monitor or HDTV that doesn't support a resolution of 1024x768, you might not be able to access the Intel® Visual BIOS setup when pressing the F2 key.

 

This explains why your NUC works perfectly fine in another TV's such as your LG 55LN5758 1080p, which supports 1024x768, which is the native resolution of the BIOS.

 

I hope this helps.

 

Best Regards,

 

Diego S.

 

OWeis
Beginner
449 Views

Ok this is unterstandable but why is Windows 10 runs under 1024x768 when i force this resolution ? And what is the BIOS resolution of an Intel Compute Stick BOXSTCK1A32WFCL ?

n_scott_pearson
Super User Retired Employee
449 Views

The Compute Stick products utilize an older BIOS Setup engine that, for the most part, utilizes text-mode display (which is equivalent to 640x480, I believe).

...S

OWeis
Beginner
449 Views

Hmm ok strange things happening when i turn Ultra Deep Color on the TV on then start the NUC let it boot into Windows and then do a restart of the NUC the splash screen and the Bios are visible and fully functional. Do anyone understand this ?

idata
Community Manager
449 Views

Hello premutos888

 

Thank you for your reply.

 

In this case, since we do not manufacture the TV or develop the actual firmware of it, you will need to contact the TV manufacturer in order to verify what exactly the changes on the TV are when you turn Ultra Deep Color on the TV since the NUC totally depends on the TV and the necessary resolution to display the BIOS.

 

Here is the contact for LG* support:

 

http://www.lg.com/us/support/tvs http://www.lg.com/us/support/tvs

 

I hope this helps.

 

Best regards.

 

Diego S.

 

OSalo2
New Contributor I
449 Views

For what it is worth, I see the same issues on a 2017 LG 65 B7V OLED TV. I can't see the NUC logo at boot nor BIOS sometimes. My other NUC (A NUC8i7HVK) works totally fine with this TV. Sometimes changing the refresh rate or resolution in Windows results in a black screen as well and only pulling out and plugging back the HDMI cable resets the state and gets me picture.

No such issues with NUC8i7HVK which works with all resolutions and frame rates.

OWeis
Beginner
449 Views

Hey it is not Intels fault LG are the bad boys hmm great i should mail LG support hmm and what are they saying mail the Intel support. Soooo long AMD works great on LG TVs so far no weird issues.

idata
Community Manager
449 Views

Hello trsqr and premutos888

 

Thank you for your response.

 

In this case as shared before, the specifications of each screen may change, but as long as the screens support 1024x768 on its firmware (not the OS), the Intel NUC kits should work fine.

 

We would like to inquire deeper into your request, so we would like both of you to provide us with a more detailed description of the issue, as follows on this link:

 

/thread/77761 https://communities.intel.com/thread/77761

 

As well, in order for me to assist you better, please provide me (both of you) with the .txt file that the System Support Utility will generate. To attach a file, you must click the "Attach" option on the bottom right-hand corner of the response box.

 

 

https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows- https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility-for-Windows-

 

 

To trsqr: please provide me with the graphic report that the Intel® Graphics Drivers will generate.

 

https://www.intel.com/content/www/us/en/support/articles/000005848/graphics-drivers.html https://www.intel.com/content/www/us/en/support/articles/000005848/graphics-drivers.html

 

 

 

I hope this helps,

 

Best Regards,

 

Diego S

 

idata
Community Manager
449 Views

 

Hello trsqr and premutos888,

 

We just wanted to double check if you still need further assistance.

 

Please do not hesitate on contacting us back.

 

Best Regards,

 

Diego S.

 

PeterNUC
New Contributor I
449 Views

Hello premutos888,

I believe that "Ultra Deep Color" configures HDMI port as 2.0, which is needed, for example, for 3840x2160 @ 60Hz with 4:4:4 chroma sub-sampling (critical if TV is used as a PC monitor).

Did you happen to get a signal from NUC with Ultra Deep Color on?

Thanks,

 

Peter
OWeis
Beginner
449 Views

Hi Peter

Yes a Signal is here as soon it boots into Windows when i have Deep Color off when i turn it on u can see the NUC Splash Screen the BIOS and Windows normaly.

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