For a Quad display system, if the user rotates the onboard display using the VGA CUI, the user will see the discrete graphics display go blank. If the user rotates the onboard display using the operating system user interface, the discrete video displays should not be affected.
The above symptom is associated with, but not limited to, the following systems which is configure with Microsoft Windows 7 32bit and 64bit.
The system is configured with Quad Display; Intel Series 6 & 7 Graphics.
None. Do not replace any hardware for this issue.
This is Quad display limitation for the Intel 6 & 7 series
the user can rotate all these displays in Windows UI, then the discrete video displays will not be affected.