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





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.
  • 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 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 2.0 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 Download Center Link
NUC10i3FN, NUC10i5FN, NUC10i7FN HDMI Firmware Update Tool for NUC10i3FN, NUC10i5FN, NUC10i7FN
NUC8i3BE, NUC8i5BE, NUC8i7BE HDMI Firmware Update Tool for NUC8i3BE, NUC8i5BE, NUC8i7BE
NUC7i3DN, NUC7i5DN, NUC7i7DN HDMI Firmware Update Tool for NUC7i3DN, NUC7i5DN, NUC7i7DN
NUC7i3BNH, NUC7i5BN, NUC7i7BN HDMI Firmware Update Tool for NUC7i3BN, NUC7i5BN, NUC7i7BN
NUC6CAY HDMI Firmware Update Tool for NUC6CAY
NUC6i7KYK HDMI Firmware Update Tool for NUC6i7KYK


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