![]() The reason I didn’t just switch over to DVI-D after I discovered this issue was mainly because of my desire to find out what went wrong. This is what drove me to initially use DisplayPort. I have a personal dislike of DVI cables and the way you have to screw them in. This INF will be interpreted by the system-supplied display class installer during driver installation. I wanted to make full use of the 144Hz functionality on the monitors, and to do so I would have to use either DisplayPort or DVI-D. A display miniport driver for a graphics device is installed on the operating system by using an INF file that is marked as ClassDisplay. On the left monitor I could see “DisplayPort- No Signal”, and on the right was my usual desktop. ![]() I made sure all the cables were tight, unplugged them and replugged them- sure enough I even turned it off and on again- but to no avail. They plug directly into an Nvidia GTX 1080. My PC set-up consists of two 144Hz monitors connected via DisplayPort cables. A bit of background - why use DisplayPort anyway? ![]() It was fine the day before, and it hadn’t been touched that day, so what gives? Let me back up a little… (unless you’re too eager and just want to see the solution). I recently faced a hardware issue on my PC at home whereby one of my two monitors seemed to suddenly no longer connect when I booted. DisplayPort no signal: The question “ have you tried turning it off and on again?” gets joked about a lot in computing when someone has a problem, it’s well known that a quick reboot often works a treat.
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