Skull Canyon NUC6i7KYK HDMI issue.

[Wagnard]

Hi, I have an issue with the HDMI of my NUC.

Here is the details.

I have tested with 3 TV/Monitors & different HDMI cables.

-When booting,(Bios, pre-windows loading) the HDMI will work with all my TV/Monitor.

-When reaching Windows, only my LG 4K TV is working.

-Reinstalled Windows (1903), all screen are working until the Intel GPU driver is installed.

-In Windows, my PG278QR and my old Sharp LC-46LE700UN turn to no signal.

-Disabling the Intel GPU driver make them work again (bit slow because the driver is not installed)

*** Using a DP to HDMI adapter plugged into the NUC make all the TVs work in all circumstances.

Tried different cable, Bios and drivers are latest, CMOS has been cleared (3 sec button reset etc..). Tried the BIOS recovery, nothing work.

The driver seems the culprit, please help.

As I can see, i'm not the only one with similar problem. (https://forums.intel.com/s/question/0D50P0000490XjhSAE/windows-cannot-detect-hdmi)

[Wanner_G_Intel]

Hello Wagnard,

Thank you for posting on this Intel Community.

Please test these steps to reinstall the latest graphics driver version 26.20.100.6911.

1. Download the latest driver.

2. Disconnect your unit from the Internet to prevent Windows* Updates from installing any other driver.

3. Uninstall the driver and the Intel® Graphics Control Panel from Control Panel > Programs and Features.

4. Restart the computer.

5. Make sure the 'Microsoft Basic Display Adapter' is listed under Windows* Device Manager > Video adapters. If not, repeat steps 2 to 4.

6. If the adapter continues to be listed as ‘Intel HD Graphics’, and no other Intel® Graphics driver is listed under 'Programs and Features' for removal, then it means Windows* has switched to a previously installed Legacy driver. At this point, we can remove Legacy drivers from Device Manager:

6.1.1 Right-click on 'Intel HD Graphics' or similar, and select 'Uninstall Device'

6.1.2 In the pop-up window make sure 'Delete the driver software for this device' is checked.

6.1.3 Click on 'Uninstall'.

6.1.4 Restart. (Repeat steps 6.1.1 through 6.1.4 until the device gets listed as 'Microsoft Basic Display Adapter')

7. Install the driver that was downloaded on step 1.

8. Restart the computer.

9. Enable your Internet connection.

If the issue persists, try installing a previous driver version (25.20.100.6519) following the steps recommended.

This could also be related to the firmware/driver version of the monitors. Please check the firmware/driver version and update it if applicable.

ROG SWIFT PG278QR 

Sharp LC-46LE700UN

Note: This link is being offered for your convenience and should not be viewed as an endorsement by Intel of the content, products, or services offered there.

Wanner G.

Intel Customer Support Technician

A Contingent Worker at Intel

[Wagnard]

Hi,

Thanks for your answer.

I tried what you suggested me to do.

1- My TV/Monitor are at the latest firmware

2- I tried reinstalling the current and older driver with your procedure confirming that no other *previous* driver was installed by seeing (Microsoft Basic Display Adapter') but the result was the same.

The only moment that the HDMI started to work in Windows was when "Microsoft Basic Display Adapter" was the current driver. The moment I install the Intel driver, HDMI is lost in windows.

For what is worth, i'm the main DDU (Display Driver Uninstaller) developer. So I know how to "play" with drivers.

But anyway when fresh installing Windows as said in first post, the driver installed automatically at some point killed the HDMI display.

I also know that when I got this NUC in the past (a year or more) my TV Sharp was working with it.

It seems as if only HDMI 2.0 devices are working. But haven't tested enough TVs/Monitor to confirm this hypothesis.

[Wanner_G_Intel]

Hello Wagnard,

Thank you for your response.

We will investigate this issue further and update this thread as soon as possible. 

Please provide us with the following information:

1. When did this issue start happening?

2. Please try reverting back to a previous version of Windows* (e.g. 1809)

3. Check the pins on the HDMI* connector. Does it change if you wiggle the cable?

Wanner G.

Intel Customer Support Technician

A Contingent Worker at Intel

[Wagnard]

It's been a while when I last use the HDMI and saw it working on a 1080p screen.

I have installed Windows 7 and it's the same as Windows 10, the HDMI stop working when the Intel driver is installed.

The HDMI connector is ok , dont forget my 4K tv is working perfectly with it.

[Wanner_G_Intel]

Hello Wagnard,

We will do further research and update this thread soon.

Wanner G.

Intel Customer Support Technician

A Contingent Worker at Intel

[Wanner_G_Intel]

Hello Wagnard,

We tested the Intel® NUC Kit NUC6i7KYK with different TVs and monitors and the drivers recommended on this thread (validated for Intel® NUC systems) in both Windows* 10 1809/1903. However, we did not experience the problems reported.

Because the port works with your LG 4K TV, this is most likely a compatibility or configuration issue with the other monitors/TVs. Our recommendation is that you can contact the manufacturers of the TVs/monitors to find more information about what could be happening with these models.

Also, you can contact Intel Customer Support in your region to replace the unit.

Also, you can check the following Intel Customer Support Contact Information: 

Intel Customer Support Contact Information for US and Canada.

Wanner G.

Intel Customer Support Technician

A Contingent Worker at Intel

[Wagnard]

Thanks for you time investigating, I'll check if it is worth replacing.