Changes

<li>Make sure you use the <span class="tb_red">original HDMI</span> port. If your desktop only has a VGA display port, there may be no video signal when you use VGA to HDMI adapter, and there is no way to solve this; However, you can try to lower the resolution and restart the PC to test, but the probability of success is very low.</li>

<li>Change the HDMI cable to test.</li>

<li>Some laptops do not output any signal until you switch the output (usually via the FN + and an F5 key on the keyboard).</li>

<li>Your computer maybe enter sleep mode, please exit sleep mode</li>