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4x Monitors @ ASUS R9270X-DC2T-4GD5 -> not working. Please help

Question asked by jh9980 on Dec 16, 2016
Latest reply on Dec 21, 2016 by jh9980

Hi everybody,


running my ASUS R9270X-DC2T-4GD5 with four monitors should work - but obviously not for me.

Maybe I'm to stupid, because I read of success stories  :-(

This is my setup:


Graphic card:




2x BenQ GL2460HM

2x BenQ GL2450



Delock Adapter Displayport 1.1 male > HDMI female (Chipset: NXP PTN3361)


Both BenQ GL2450 are connected via DVI (1x DVI-I / 1x DVI-D).

One BenQ GL2460HM is connected via HDMI to my graphic cards HDMI-port.

The other BenQ GL2460HM is connected via HDMI to my graphic cards Displayport (by using the Delock Adapter).


Three monitors are running fine at the same time. But the monitors connected to HDMI and Displayport don't work parallel.

I simply don't get the HDMI _and_ the Displayport running at the same time. Every time I plug off HDMI, the display connected via Displayport (and Delock Adapter) works. When I put back the HDMI cable into my display, the other monitor can't be used any more. Changing resolution did also not help (720p <-> 1080p).


I already updated all drivers including mainboard and graphic card (also re-installing). I did a lot of research, but no luck so far...


Does anyone have an idea for me, please?


Thank you