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Beginner
139 Views

NUC7i3BNH Screen Flickering Problem

I purchased a NUC7i3BNH and installed a clean copy of Windows 10 for use with my Dell U2718Q. So far I have encountered massive issues when trying to output 4K (3840x2160) @ 60Hz using HDMI cable.

 

Simply browsing menus/folders or opening the start menu will occasionally cause the screen to go completely black for ~1second, during which time the audio also cuts out. A small percentage of the time after the screen flickers black the audio will not return unless I unplug/plug the HDMI cable or restart the NUC.

I try to replace new HDMI cable, update HDMI firmware or update Graphics Card driver (download on Intel site) but everything still going.

Can someone help me fix it ? SSU file in attachment. Thanks 

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4 Replies
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Super User
36 Views

Please download Intel System Support Utility (SSU). Run the SSU scan and save the results. Next, attach the .txt file with the results to your post (use the "paperclip" under the left bottom corner).

 

Leon

 

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Super User Retired Employee
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When you see the screen go black for a second or two like this, it is because the NUC and the Monitor lost communication with each other. Losing communication may appear random because it is dependent upon the data as well as the data rate. Unfortunately, there are a couple of things that can cause this,

 

  • Poor quality HDMI cable. Get a better one. Should be HDMI 2.0 compliant at least (I prefer HDMI 2.0b or better).

 

  • Poor quality DP cable. Get a better one. The cable needs to actually say it is HBR2 (or better HBR3) compliant. Unfortunately, HBR/HBR1 and HBR2 cables are both similarly marked as being "Standard DisplayPort" cables. This is a flaw in the spec that has never been addressed. If the cable says nothing more than "Standard DisplayPort", presume it's inferior HBR/HBR1 and don't buy it.

 

  • For HDMI connections, down-rev HDMI firmware in the lspCON IC (which converts from DisplayPort 1.2 to HDMI 2.0 protocol). Make sure you have the latest firmware installed.

 

  • Issue in the Intel HD Graphics driver. Remember that portion is in BIOS, so make sure you have the latest BIOS and latest driver package. BTW, new driver released this week, download the latest DCH Graphics Driver Version: 26.20.100.8141.

 

Hope this helps,

...S

 

 

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Beginner
36 Views

Things are still bad.

I tried updating the latest HDMI firmware, and the flashing disappeared, but when I turned off or restarted, the screen kept blinking.

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Super User Retired Employee
36 Views

Make sure you have the latest BIOS (81) installed as well. You can do this manually (download from here) or via Intel Driver & Support Assistant.

...S

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