![]() ![]() Check that the DisplayPort cable is plugged in all the wayĬables can easily come a bit loose if they’re bumped. It’s common that the software on either device has frozen in the background, which causes things like the display to not work. Wait for about 30 seconds, and then plug them back in and turn them on again. Turn them off and then unplug them at the wall outlet. You will be using two types of devices, a source such as a computer, and a display device such as a monitor. To do this step restart both devices you’re using. In all of my experience working with electronic devices this is one of the most effective ways to solve issues like this. Turn both of the devices on and off again – restart them I’ve ordered them from easiest and most likely to get it working.Įach of these steps can get the DisplayPort signal to work, so after each one check to see if it’s working. In total there are 5 troubleshooting steps, these are all very easy to perform. But all of the steps are explained below. The next most common cause is that the DP cable is slightly loose. Overall, begin with restarting both devices you’re using, this will be the source device such as a computer, as well as, the screen such as a TV, monitor, or projector. When this error occurs here’s the steps to troubleshoot it and get it working. This makes it very easy to see what the main issue is that’s stopping the display device from working. The good thing about display devices such as monitors, and projectors is that they will give you the error message that there is no DisplayPort signal. Below, I will explain how to perform each of these troubleshooting steps in step by step detail so you know exactly what to do to get it working again. If either of these are not up to date they can conflict with each other. Following that, verify that the DisplayPort cable is connected properly on both ends, then test if the cable is working fine by using a different display port cable or an HDMI cable.įollowing these steps, for computers make sure that you have the most update to date graphics card driver, and your Windows operating system has the latest update installed. In rare cases you can get an error message that says that the display device (TV, projector, or monitor) has no DP signal, and today I will explain how to troubleshoot this issue.Īs a general rule, start by restarting your computer and the monitor/TV/projector that says no signal. Although these speeds aren’t required for monitors, projectors, or TVs that are lower than 4K, the technology is still the fastest. If you have further questions about this solution, please contact Dell Technical Support.Displayport is a newer technology than HDMI that provides much faster signal speeds. Use a DisplayPort Cable that you have tested on another working system too, to ensure that the original cable is not faulty. Try moving the display to another system that works with a DisplayPort configured display and see if a different display works on the affected system. If the display still does not receive a signal. If the cable connections are correct, then the next step is to adjust the OSD menu to ensure that the correct port is selected to receive the system's video signal. These displays have both Input and Output DisplayPort connections and the input connection "DP in" or "mini-DP in" is used to connect the display to the system. The first thing to check is the DisplayPort cable connection on the display. ![]() If you receive an "No DisplayPort Cable" error message when setting up the display. No DisplayPort Cable Error Troubleshooting Due to this, the input port must be manually selected. Note: Displays that have more than 3 input options cannot be configured for "Autodefect" like less advanced displays. Systems or displays without these cable connections require specialized adapters to connect to these ports. ![]() Many TVs and multimedia devices use HDMI connections. HDMI is the oldest of modern display connections, also allowing for Video and Audio data through the same cable. Mini-DisplayPort has many of the same features of DisplayPort with a smaller connector. It also allows for Multi-Stream Technology (MST) connections of 2 or more MST capable displays through one DisplayPort connection. HDMI (Two port allowing HDMI connections to 2 devices) (See Figure 3)ĭisplayPort is the most versatile connection type allowing both video and audio data transmission. The cable configuration from the computer graphics adapter must match the cable input to the display. If your system does not support a DisplayPort connection, you must purchase the appropriate cable for your system. Note: The Default cable that is packaged with Dell DisplayPort capable displays is the Mini-DisplayPort (mDP) to DisplayPort (DP) cable. ![]()
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