Audio or Display Problems Related to HDMI on Intel® NUCs That Use LS-PCON

Documentation

Troubleshooting

000024118

10/25/2021

What are you seeing?

  • Your Samsung 6000* series television doesn't display video when connected to your Intel® NUC.
  • Some surround sound formats don't work when using your Intel NUC with an AV (Audio/Video) receiver.
  • A head-mounted display doesn’t wake up from sleep (S3) when using Windows* Mixed Reality.
  • Flickering display when using an HDMI-to-DVI adapter.
  • A blurry or distorted display.
  • Surround sound not playing or not playing correctly on HDMI 2.1 devices

Why are you seeing it?

One reason you could be having these issues is due to old HDMI firmware for the DisplayPort to HDMI 2.X Level Shifter/Protocol Converter (LS-PCON) on your Intel NUC.

How to fix it

Update the HDMI firmware. If your Intel NUC isn't on this list, either it doesn't use LS-PCON or there isn't currently an HDMI firmware update available.

Intel® NUC Model HDMI Firmware Version/ Download Link
NUC10i3FN, NUC10i5FN, NUC10i7FN Version 1.78.2.0.7
NUC8i3BE, NUC8i5BE, NUC8i7BE Version 1.78.4.0.4
NUC7i3DN, NUC7i5DN, NUC7i7DN Version 1.78.1.1
NUC7i3BNH, NUC7i5BN, NUC7i7BN Version 1.77.93
NUC6CAY Version 1.77.93
NUC6i7KYK Version 0x07_0x20

Troubleshooting

If you get a blank screen for longer than two or three minutes during the update, leave the HDMI device connected, connect another display to the other display output, and run the update again.

Related topic
Troubleshooting Flickering Displays on Intel® NUC