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We use the Intel sharkbay platform to do our motherboard design,
The PCH is Q87, CPU is Haswell DT CPU,
There isn't have local panel, Our primary display output is through DVI interface.
We uses Intel generic graphics driver 10.18.10.3325 and VBIOS/GOP.
Now, We encounter the trouble when connect the HDMI is secondly display output.
Current setting Port B is DVI output and define to primary output,
Port C is HDMI and define to secondly output.
If we connect DVI(primary) and HDMI(secondly) device at the same time and switch display output by "WinKey" + P,
The expect behavior should be DVI device ouput when set LCD only, and HDMI ouput when set projector only,