![]() > Select “Device Manager” from the list on the left side. > Right click on “This PC” and click on “Manage”. The first one is the default Windows graphics driver update and the second one is through the manufacturer’s site. To update your graphics driver, you can use any of the two methods. Outdated and faulty drivers can result in performance losses and No DP Signal error. Manufacturers release the latest driver updates regularly to fix bugs and compatibility issues. This restarts your graphics driver whether you are using Windows 7, 8, 10, or 11. >Simply press Windows+CTRL+SHIFT+B together and your monitor will go black for a moment or a second. Restarting the graphics driver is an inbuilt feature of the Windows operating system and will take only a second. This is probably one of the most working fixes when your monitor isn’t responding with a DP cable and works across all GPUs whether it is from AMD, Nvidia, or Intel. Alternatively, you can remove the GPU from your computer and check through the DisplayPort of your motherboard by connecting the monitor to your motherboard. If your computer uses a discrete graphics card, make sure you have plugged the DP cable into the DisplayPort of your graphics card and not the motherboard.Ĭlear any dust from the ports and switch to another GPU DisplayPort if it has more than one. This will select DisplayPort as the input option and you should get the signal. > Select “Input Source” and use the “1” and “2” buttons to select “ DisplayPort” and press “3” to confirm. > Select the third option by pressing “3” to open the On-Screen menu. On Dell monitors, you can press any of the 4 buttons present at the front of your monitor to open up the menu. In this case, you can manually select the DisplayPort input option from the OSD menu of your monitor. Some monitors don’t have the function for input autoselect. > In case, you are using an adapter like an HDMI to DP adapter, clean the ports on the adapter and use another DP port if available. Generally, cheap DP cables with several meters in length may cause the No DP Signal issue and I recommend using a max length of 6 feet to ensure a high-quality cable connection. > Use another spare DP cable to test out whether the culprit is your monitor/computer or the cable. > Remove the connectors for a fresh connection and blow out the dust from the ports of your monitor and computer to avoid any improper connection. Make sure you have properly inserted the DP cable into your monitor and computer. If the error still persists, then the culprit might be the improper connection between your monitor and the computer. Sometimes, a simple computer restart may fix the No DP Signal error but it is advisable to switch all of your devices for at least 10 seconds from the dock to discharge all the devices completely. However, if you haven’t tried this, it is an essential step before proceeding to the other methods. Restarting your devices generally doesn’t solve your problems and most users do this before trying other fixes. With some quick fixes, you can easily sort out the problem in a couple of minutes and we highly recommend following this guide step by step in the stated sequence to quickly troubleshoot the problem. Dell monitors such as P2419H, P2417H, and P2719H usually see the No DP Signal error more often and the reason behind this error is the improper connection between your monitor and computer. However, the “ No DP Signal” error has become quite common with some monitors. DisplayPort supports high refresh rates on big resolutions and can transmit both video and audio signals. There is no doubt that the DisplayPort is one of the best solutions for high-definition visual quality and comes with a lot of benefits compared to HDMI and DVI ports.
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