Nvidia is aware and still working on it!
The currently available GTX 1000 cards are advertised to be VR-ready graphic cards. It promises of offering Breakthrough VR experiences. And it does…
Unfortunately, there is an issue lingering where it cannot display VR content on the HTC Vive headset via the DisplayPort. But it does bring up an inconvenience if the monitor does not have a DisplayPort. Hence, relying on the HDMI is the only choice since it works the way it should. This problem has been circulating in Nvidia forums and in Reddit where GTX 1070 and GTX 1080 users confirmed this issue.
This issue came up over here where multiple people have complained about this issue. It was advised by other users to update the driver. But the HTC Vive users confirmed it doesn’t work. More HTC Vive users turned up and confirmed the issue. Back in June, Nvidia’s forum customer care said that they’re looking towards resolving this issue. Meanwhile, people tried using output adapters like a DisplayPort to HDMI. Unfortunately, it’s a trial-and-error process to find which one can actually work. The problem arises when people need to use HDMI for their monitors and they wouldn’t need to swap cables every time they’re done with the VR headset.
Judging by the error, it doesn’t to identify DisplayPort in use.
A friend of Tom’s Hardware journalist also had the same issue. Upon testing, it was confirmed that there is definitely a problem between the GTX 1000 series and the HTC Vive while using the DisplayPort. Typically, GTX 1000 cards- including most custom design models- have a single HDMI and single DVI. This doesn’t seem to be a problem if you have a GTX 1000 series graphic card like the Asus Strix GTX 1080 that has two HDMI ports. One could not help but notice the words ‘VR-friendly HDMI ports for immersive virtual reality experiences’ tagline in its microsite.
During a conference call, I asked the question about this issue. Benjamin Berraondo, the head of Consumer PR at Nvidia said that they are aware of the issue and their engineers are working to resolve it. In the meanwhile, either HTC Vive customers use HDMI instead and use DisplayPort on the monitors if possible. Or just swap the HDMI connection between the VR headset and the monitor whenever required.
— Hardware BBQ (@HardwareBBQ) July 6, 2016