Intel(R) 965 Express Chipset Family. Rotate second display on clone mode

[nonamemanah]

Hello.

Help me please.

On my PC installed Intel 965 Express Chipset Family. Also second monitor plugged to PC in mode Intel Dual display Clone.

From my code I try rotate secondary monitor at 90 degrees.

I used ChangeDisplaySettingsEx methods for do this job. On your's forum I was read that I must call ChangeDisplaySettings(null, 0). But this don't help. My second display not want rotate.

But, if I try rotate first display, it rotate.

devName first display "\\\\.\\DISPLAY1"
devName second display "\\\\.\\DISPLAY2"

Please, help me. What I must do for rotate second monitor?

Thanks!