FIX: DirectX 10 test hangs at black screen

[csdarknightcs]

For anyone running all tests, or just the 3D Graphics tests, and everything works except the DirectX 10 hanging at a black screen (DX9 and DX11 tests work fine) this is what worked for me:
The fix for this is to go into the GeForce Control Panel and uncheck any monitor/TV except your primary monitor. Having two monitors checked (clone or extended) will cause the DirectX 10 test to hang up with a black screen. No idea why 9 and 11 work, but not 10.

Windows 7 Pro x64
GeForce GTX 970
2D Mark 914
3D Mark 8994

[David (PassMark)]

There must also be some other factor at play, like device driver version, or the presence of additional GPUs or a specific video card model, or particular resolutions, or 3rd party software, or something....

All our software development machines are dual monitor machines, several of them with nVidia cards on Win7. We don't see this issue.

If anyone does notice it, please post your hardware details and device driver version.

[Cris]

Hello
I have the same gpu GF GTX 970 running on 2two monitors
Win 7 x64 and all tests work smooth.
P.S.
Maybe the issue was caused by the last nvidia driver (release 347.09 WHQL) at least
this caused me some problems.