HD530 (i7 6700K) Second display detected but gets only black image

[Hasan1989]

I have QHD and FullHD displays and I use integrated graphics (HD530). A QHD display is connected via HDMI and FullHD via DVI. When I boot with two displays plugged in I can only see picture on the QHD display. However, the FullHD display is detected and I even can change its resolution. When I try to change some parameters of the FullHD display with the RDM app I get a black signal from this screen (I can see the display's backlight on) but no picture.

I can provide additional information if needed. Any suggestions?

 

[Hasan1989]

It started to work when I plugged only QHD display while booting and then plugged other display. Is there any way to make it work without this plugging/unplugging?

 

[BreBo]

Any suggestions?

Check [GUIDE/Workaround] Using Intel HD530 with Dual Monitors