The Display port cable helps transmit audio and video signals from external devices to your monitor. If you come across the “no DP signal from your device” error then you won’t get any display. At times when you boot your computer, you may come across the “no DP signal from your device” error. The DP – Display port cable is what transmits audio and video signals. It is what makes it possible to use multiple video sources on your device.
However, at times your Dell monitor may fail to detect the Display Port connection. When this happens, you may get the “no Display port cable” or “No DP signal from your device” error.
In TVs, you have the HDMI port while for computers it is the DisplayPort, so you can understand how important it is. We will take a look at the major issues that cause the error and how to troubleshoot it.
What Causes The “No DP Signal From Your Device” Error?
The causes for that error may differ based on your device. However, there are major causes for that error.
- Damaged cable – If the DP cable is damaged then there won’t be any transmission. You may not get a video or audio signal or just one of them.
- Incompatible graphics card – A graphics card not compatible with your device may also cause the error. At times, it may refuse to work if the graphics card has just been changed, or you are using an external graphics card.
- Malware in your device – If your computer has gotten infected with a virus, malware, or spyware or has undergone any cyberattacks, it may lead to the error. The malicious software collides with the display driver making it not work perfectly.
- RAM issues – RAM can also cause no display if the PC doesn't have a dedicated GPU and is using the internal video card. If the RAM can’t handle heavy graphics load, it can cause an issue. If you have a different graphics card or using an external GPU, the signal might not be processed.
- Faulty, out-of-date, or missing device drivers – Another reason that may cause the issue would be faulty device drivers. This will make your PC not function as it should leading to the “No DP signal from your device”
- Multiple Monitors – The error may also occur if you have multiple monitor connections. It is mostly recommended to use one monitor.
Major Solutions To “No DP Signal From Your Device” Error In Your Dell Monitor.
In case you realize that it is any of the issues above. Here are some ways you can use to resolve the issue:
1. Unplug the DisplayPort Cable
First, check whether the Display Cable is properly connected to the monitor. Therefore, remove and reconnect the cable. The cable might be loose or broken. However, before reconnecting, check whether the DP cable is in a good state or not. If it looks fine, then that might not be the issue.
You can also try to use the DisplayPort cable on another computer or another DisplayPort cable to check whether it will work. If it works on another computer, know that maybe the computer has another issue and if another cable works, the cable is the issue.
2. Restart your device
If the cable has no issue, then consider restarting the device. First, unplug the cable, reconnect it again, and restart your device. Check whether that will solve the issue. It might be that you had left your computer in sleep or hibernation mode and turning it off completely will let it start a fresh.
3. Update the Monitor’s Drivers
One major issue is faulty or outdated drivers, therefore, to solve that, try and check your Dell monitor’s drivers. This issue can make the DP cable not recognize the display. To get the best Display Port driver download from the official website, update the drivers and check whether that will solve the issue.
4. Use the right Display Port input source
In case your display uses more than one display port, you need to read the manual to know which input sources the Display Port should be connected to. For example, if the display port cable is inserted in DP1 on the computer, the monitor’s input source should be set to DP1 too.
5. Update the graphics card drive
Also, consider updating your graphics card drive or display so that the computer can recognize any external device connected to the monitor. It is simple to do so:
Step 1: Click the Windows + X buttons or the Start menu icon. On the menu list, select “Device Manager”.
Step 2: Select the “Display Adapter” option. It will expand, and you will see your computer’s Graphics card.
Step 3: Right-click on it and select, update driver.
Step 4: Select the option, “search automatically for drivers”.
Step 5: Update the drivers and restart your computer.
6. Reverse an update
Also, in case the issue started when you made some updates on your computer, you can consider reversing back to the earlier driver versions. Once you downgrade, restart your computer.
The procedure is the same as for updating the drivers, however, for this, you will right-click on the graphics card and click on the properties option, then select the Drivers tab and select Roll back driver. As easy as that.
7. Tweak the Monitor refresh rate
The refresh rate is how often a monitor’s screen changes each time a new picture emerges. The monitor's ability to update graphics depends on the refresh rate. Low refresh rate may cause issues with the screen such as flickering. You can resolve the issue using these simple steps:
Step 1: Access the start menu and click on Settings. Proceed to select the System’s option.
Step 2: In the right panel, under Display, select “Advanced display settings”. Then find the Display adapter properties. Alternatively, click on the Windows + S buttons then search for “Advanced display settings”.
Step 3: Under the monitor section, adjust the refresh rate to 85, 100, or another higher rate.
Step 4: Make the changes, and press OK.
8. Contact the Dell support
In case you try to troubleshoot using all these methods and nothing seems to work, you can consider contacting Dell support.
Troubleshoot your Monitor’s problems Effortlessly.
These solutions can help you troubleshoot the “No DP signal from your device” error. You can try them individually until you find the one that resolves the issue. If not, then consider contacting the support team to give you a viable solution.
These errors occur and there is no need to panic at all. Your computer will function properly within no time. However, always check whether the external devices are well-connected to the computer to prevent unwanted issues like this.