Fix HDMI to DisplayPort & DisplayPort to HDMI Not Working Issue

HDMI to DisplayPort & DisplayPort to HDMI Not Working

1. HDMI vs DisplayPort

Both HDMI (High-Definition Multimedia Interface) and DP (DisplayPort) are digital audio and video interface that is used to transfer video and audio data from a source device (output port) to a display device (input port).

The difference between the two interfaces is that HDMI is designed to replace older analog signal video and audio transmission interfaces such as SCART or RCA terminals, while DP is designed to replace traditional VGA, DVI and FPD-Link (LVDS) interfaces.

Therefore, HDMI is usually used in computer monitor, video projector, digital television, or digital audio device. DP is usually used in high-end computer monitors.

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2. Why do you need to use HDMI to DisplayPort adapters or Display Port to HDMI Adapters?

Some PS4 consoles have only the HDMI output ports. If you want to transfer the screen of the PS4 to a PC with a DP input port, you may need a HDMI to DP adapter. If you want to transfer videos from a DP output port to a HDMI input port for display, you may need a DP to HDMI adapter.

3. Why does HDMI to DisplayPort or DisplayPort to HDMI not working issue happen?

The reasons include: loose connection, outdated display drivers, or wrong cables.

Fix HDMI to DisplayPort & DisplayPort to HDMI Issues

If HDMI to DisplayPort not working or DisplayPort to HDMI not working issues happen to you, you can try the following methods to solve this problem.

Fix 1. Check the Cable Connection

If the cable connection is loose, the adapter may not work. Please disconnect and reconnect the cable to make the cable connection is tight.

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Fix 2. Update Display Drivers

If the HDMI to DisplayPort not working or DisplayPort to HDMI not working issue happens on PC, you can try updating display drivers to solve this issue. Here is the guide:

• Press “Windows + X” keys.
• Select Device Managerin the pop-up menu.
• Expand the Display adaptersand right-click the driver to select Update driver.
• Select Search automatically for updated driver softwarein the pop-up window.

Fix 3. Manually Enable HDMI or DisplayPort Input

For the HDMI to DisplayPort adapter, it converts HDMI signals to DP signals, so you should make sure the display device can recognize DP signals. For the DisplayPort to HDMI adapter, it converts DP signals to HDMI signals, so you should make sure the display device can recognize the HDMI signals.

Some monitors allow you to change the input mode to HDMI or DP. In this case, changing the input mode may solve the problem.

Fix 4. Replace the Adapter

In most cases, these adapters are monodirectional. An HDMI to DisplayPort adapter can’t be used to connect a DP source with an HDMI display. A DP to HDMI adapter can’t be used to connect an HDMI source with a DP display. In this case, you may need to replace to adapter.

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