[2022] What to do if your screen does not appear properly when connected to a PC

First, check that your PC is turned on and make sure that it is not in Sleep mode. Completely disconnect the HDMI cable from your TV and PC, then reconnect it. Use of a certified cable is highly recommended. Using a non-certified HDMI cable may cause connection issues, or your screen may not appear properly.

How to use the HDMI Troubleshooting function

 You can use HDMI Troubleshooting to check the connection between your HDMI cable and the external device.

• Press the Home button > Menu > Settings > Support > Device Care > Self Diagnosis > HDMI Troubleshooting

If you connect an external device with an HDMI cable, you can extend the input signal range of HDMI connections. Depending on the input signal range settings, the native resolution of the TV may vary.

Step 1. Press the Home button on your remote control and navigate to Menu.

Step 2. Select Settings > All Settings.

Your TV screen may flicker or may not appear properly if your PC resolution is not supported. The native resolutions are 3840 x 2160 @ 60 Hz (UHD models) and 7680 x 4320 @ 60 Hz (QN7**B series or higher) with the Input Signal Plus set to On. The native resolution is 3840 x 2160 @ 30 Hz with the Input Signal Plus set to Off.