Unfortunately, there are many reasons why your DVI to Displayport is not working, so you will have to run through the different solutions to see what your reason is. The Intel/Apple love child of Thunderbolt is technically only available on one monitor ( Apple Thunderbolt Display). There are likely to be more, but don't expect some sort of Thunderbolt revolution. The connection is compatible with Mini DisplayPort. While your computer searches for updates, do not do anything. Eventually, a dialog box will pop up that tells you whether or not there any updates.

If you want to use your Displayport monitor but it isn’t connecting the first time you use it, it could be that you haven’t connected it properly. This is only a solution if you haven’t been connected before. There is an off chance that your settings may have changed and you can try this with a monitor that has been connected before, but that isn’t common. Shut down your computer and turn off your monitor. Allow them to sit for a few seconds before you begin working. It can happen suddenly or it could have been an issue that you saw coming: all of a sudden your DVI to Displayport is not working. This is an issue that can start almost anywhere in the process, from the cable itself to the port to something going on within the software used to make the parts communicate.

Another solution is to try to swap ports on your computer’s tower. If there are multiple display ports, test the monitor with the other ones. Turn on your computer and then the monitor. Press the “Reset/DV Mode” button or the “Source” button on the front of the monitor (it will be either or, you shouldn’t have both options). Keep pressing it until the word “DVI” appears at the top of your screen. The best thing to do when your DVI to Displayport isn’t working is to troubleshoot all of the different areas until something works for you. These solutions will largely work when you are first setting up your Displayport or when you have had it for some time. If the monitor turns on correctly, then the computer is the source of the problem. If it doesn’t, then the monitor may be an issue. You may need to restart your second computer once connected to really rule out the tower being the issue. Your monitor likely has a few different DVI configurations that you will need to adjust, including the DVI-I and the DVI-D, the color depth, refresh rate, and resolution.

Disconnect any video cables that go from the computer tower to the monitor. This includes the VGA or HDMI cables. If you cannot connect the DVI to the Displayport monitor, it could be that something is wrong with your computer’s graphics card. Try to reset or replace your graphics card, paying close attention to compatibility. With televisions, HDMI is the most common connector. But if you want to connect a computer to your TV (or you've got a new computer monitor), the options tend to be HDMI, DisplayPort, DVI, and sometimes old-school VGA. If you are having trouble with your DVI to Displayport not working, or your Displayport not detected, you have to work through a few possible fixes:If you have been successfully using your DVI to Displayport setup and it just stopped working, then you probably have an issue with your adaptor. Diagnosing and fixing what’s wrong with the adaptor isn’t complicated because other people have had similar issues before you. We’ve gathered the most common problems with the adaptor and found the solutions. Sometimes, your adaptor just won’t respond and you need to get it replaced. In this case, it may be a better idea to just get a new monitor. DisplayPort is a 20 pin connector similar to HDMI but designed to replace DVI/VGA. The standard was put forward by VESA to define a new royalty free audio/video connection. All other products will be delivered via the fastest available method (excluding bank holidays and weekends) and generally within 3-5 days, depending on customer location. Even better, if your computer has a secondary video card, try to connect the monitor to that card and then remove the initial video card. You Need To Update Your Software To The Latest Versions