The DK2 is a Development Kit, meaning it was released prior to the launch of the first Consumer Version, the CV1 (Consumer Version 1) As of June, the CV1 is the only Oculus Rift headset in production, is the only Rift headset fully supported by Oculus.
Oculus has posted the following article on their support website regarding the DK2 headset:
"Will the DK2 work on the Oculus Platform?
DK2 will continue to be supported as a development platform in 2016... DK2 is not officially supported as a consumer product, although it will provide access to aforementioned software.
...Since DK2 is a developer kit and content on the Oculus Store is designed specifically for consumer Rift, there may be issues running it now or in the future..." Full Article Here.
Prospect & the DK2:
Our software, Prospect, must run on the latest version of the Oculus Rift runtime in order to support the widest audience of users.
Recently, we have a number of notifications from users who have an Oculus Rift DK2 stating that they are unable to download and install the latest version Oculus Runtime and as a result can not launch Prospect.
Those users are receiving the "concrete image" (below) as an error message.
What else can I do?
If you are currently using Prospect with a DK2 headset and are experiencing the issue above, there are a few last troubleshooting steps we can offer you to get up and running.
Part 1: Oculus Runtime
1. Open Oculus Home Screen from your desktop. If your DK2 is connected, you will immediately receive a blue message from Oculus stating that the DK2 is unsupported (see below).
2. Proceed with DK2 setup by navigating to Settings - Devices - [Oculus DK2 - Sensor - Controller]. You may receive numerous alert messages about the DK2 not being supported which you'll need to ignore during this process.
3. Next, make sure that you are using the most recent version of Oculus Runtime. If you are prompted with this screen, go ahead and update:
If you are not prompted with this screen, you are already running the latest version.
Part 2: Graphic Card Drivers
After you have confirmed that you are running the latest Oculus Runtime, check your graphics card provider for updates. For NVIDIA graphic card users follow the steps below. For all other providers, check the respective manufacturers' webpage for instructions on updating drivers.
1. If the GeForce Experience is not installed, here is a link to Install GeForce Experience.
(If installed skip to step 2.)
2. Open the control center to confirm everything is up to date. In the lower right corner of your desktop, open the small "hidden icon" menu and look for the NVIDIA GeForce Experience logo. (see image below)
3. After opening NVIDIA GeForce Experience, you should see the image below on your screen, prompting you to check for updates, ensuring that all drivers are up to date and optimized for peak performance.
GeForce Experience helps update, maintain, and optimize drivers for use with VR experiences. Keeping your drivers up to date will help you achieve a better VR experience.
While this solution may work in the short-term, there is a chance that it might not as well. Because Oculus has clearly stated that support for the DK2 will be ending we are strongly recommending to our users that they upgrade their headsets to a consumer edition, from Oculus or HTC Vive.
Please note that once Oculus no longer supports the DK2, you will not be able to run Prospect on the DK2 and we cannot provide you with an older build of the software.