No DP Signal From Your Device Monitor (Dell)

What is a DisplayPort?

Difference between HDMI and DisplayPort

Regular HDMI and HDMI 2.0 support a maximum bandwidth of 18Gbps, which helps run 4K videos at 60 FPS. However, the DP 1.4 offers a bandwidth of a massive 32.4 Gbps, taking the potential for quality to the next level.

Causes for the Display Port Not working on Windows

There are multiple reasons behind the ‘No DP Signal from Your Device’ error. Here, we enlist the most common ones:

• Damaged Cable: When the DisplayPort cable is damaged, the signal will not be transferred to the monitor. This means there will be only a partial signal, which is insufficient to obtain video and sound.
• Incompatible Graphics Card: Another common reason is incompatible graphics cards. If the graphics cannot intercept the signals, the signal will not be processed.
• Malware: If the computer is infected by viruses or spyware, the signal may stop reaching your monitor. Usually, this happens when malicious software interferes with a driver that enables your display.
• Outdated or missing device driver: When the device drivers are corrupt or problematic, the chances of facing a No DP signal increase.
• Inappropriate refresh rate: This software issue leads to DisplayPort not detecting the issue.
  

Effective Solutions For ‘No DP Signal From Your Device’ For Dell Monitor

If the DisplayPort option is accessible but no signal appears on the screen, perform the following steps to resolve the issue.

Fix 1. Unplug and Reconnect the DisplayPort Cable

Unplug and reconnect the DP cable to resolve the ‘No DP Signal From Your Device’ error. A loose cable is what usually causes the errors. A damaged DisplayPort, loose cable, or broken/substandard cable can all cause the ‘No DP signal from your device’ error. While at it, ensure no external material interferes with contact between the cable, your computer, and the DisplayPort display.

Fix 2. Restart Your Devices

If changing the cable does not resolve the issue, restart your computer and the external display. Unplug the monitor from its power source, wait approximately 10 seconds, and then plug it back in.

Fix 3. Use a Different DisplayPort Cable or Computer

If you cannot fix the issue, we recommend you try using a different DisplayPort on your current PC or a different computer to connect using the same cable. Confused? Well, don’t be.

Sometimes, you do not realize whether the USB port or the cable is causing the error. Hence, to identify the error closely, you can either –

• Try using a newer cable with the DisplayPort on your PC
• Or, try using the same cable you have on a different PC

This will help you realize the point of error so that you can rectify it accordingly. If the issue is with the PC DisplayPort, it is a hardware error. We recommend that you call in an expert with the same to fix the error.

If the issue lies in the cable, a replacement can be ordered.

Fix 4. Update the Dell Monitor Drivers

Check for the device drivers if you wish to fix the DisplayPort no signal issue. An outdated driver version can and will prohibit the DP cable from recognizing your display. Make sure you install the updated versions of the device drivers. Otherwise, your device may not provide a DisplayPort signal to the monitor. Check for the Dell monitor device name and serial number and go to the official website.

Fix 5. Clear Display Cache

The next solution is to clear the display cache. To do so, disconnect the display from the system and download the Surface Dock registry file. This file will clear the cache whether you have a dock or not. Surface dock registry.reg should be executed. Yes, to allow changes to your Surface; yes, to confirm; and OK, to close the window. Reboot your Surface, connect the Dock and monitors, and test your external display again.

Fix 6. Select the Correct Input Source

If your display has more than one DisplayPort, utilize the menu to pick the proper active input source into which you connected the DisplayPort connection. Assume the display has two DisplayPorts, ‘DisplayPort1’ and ‘ DisplayPort2.’ If your computer is plugged into the first DisplayPort, ensure the monitor’s input source is set to ‘DP1’ or ‘DP2’ for the second DisplayPort.

Fix 7. Update Graphics Driver

If your computer does not identify an external monitor attached through DisplayPort, updating your display/graphics drivers may assist you in resolving the issue.

Fix 8. Change the Refresh Rate on the Monitor

As explained in the reasons, the refresh rate on the monitor is also responsible for DisplayPort’s no signal issue on Dell and other PCs. Changing it helps fix the issue. Hence, it is worth giving a try.

To change the refresh rate, follow these steps:

1. Press Windows + I to access Windows settings.

2. Click System > Display.

3. Click the Advanced display settings option.

4. Click Display Adapter Properties option

5. Click the Monitor tab and then click the down arrow to select the refresh rate.

6. Click Apply > OK.

Fix 10. Use an alternate cable or device

Besides software issues, hardware issues can also lead to a “no dp signal from your device” issue. If all the above fixes fail to work, we suggest using an alternate cable and device. If the DisplayPort connection error goes away then there is an issue with the cable, change it to fix the issue.