Intel Graphics HD4600 that DVI (Primary) / HDMI (Secondly) display output is reversed by Win+P.

[JChou20]

Dear Sir,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.[Explain]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,But we got the reversed result, (HDMI output when set LCD only and DVI output when set projector only).We have no such experience how to deal with it, Therefore,Could you please help to check how to get expect behavior by Intel GOP/VBIOS or graphics driver point of view ?Thank you very much.[Port B settings for DVI][Port C settings for HDMI]

[Amy_C_Intel]

Hello Angus.C,

This design information is not available from our end but my recommendation is to post this question in our developer community https://software.intel.com/en-us/forum Forums

Regards,

Amy.

[JChou20]

Dear Amy,

Thanks for your replied,

But I don't know which Intel Developer Zone Forums can post this question,

If possible, Could you tell me which Intel Developer Zone Forums is correct ?

I'll be grateful to you.

Thank you very much

[Amy_C_Intel]

You can try posting that inquiry here https://software.intel.com/en-us/forums/developing-games-and-graphics-on-intel Developing Games & Graphics on Intel.

Regards,

Amy.

[JChou20]

Dear Amy,

Thank you for you point out,

Let me post my question into Intel Developer Zone of https://software.intel.com/en-us/forums/developing-games-and-graphics-on-intel Developing Games & Graphics on Intel.

All the best,Angus