Thanks to a fella in the Russian forum who showed me how to do that. If you run on Win 7 here are the steps:
- Run this command: "C:\program files\Oculus\Support\oculus-runtime\DirectDisplayConfig.exe" off
(change the path if it is different on your machine)
- Restart Oculus runtime service
- Go to NVIDIA control panel, and there you will see your Oculus as a second monitor
- Adjust color saturation (other properties i.e. contrast, brightness don't work)
- Run this command: "C:\program files\Oculus\Support\oculus-runtime\DirectDisplayConfig.exe" on
- Restart service.
Also, make sure Oculus Home is not running while you doing the steps above.