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Triple Monitor Issue 3x ASUS VC239H (DVI, HDMI, VGA) monitors with AMD Radeon Sapphire R9 270x 4GB (DVI, DVI, HDMI, DisplayPort)

Question asked by hyflex on Jul 17, 2016
Latest reply on Jul 17, 2016 by amdpete


If I connect two monitors to the graphics card via DVI to DVI one of the monitors doesn't turn on. It's not a broken port or broken cable as I've tried them individually and they work fine.


According to I should be able to connect all 3 monitors how I have it setup because all 3 monitors are the same, they're all 1920x1080 which isn't excessive in terms of resolution so that can't be the issue.


When I connect or disconnect the DVI cable Windows makes the "da ding" noise to tell me that a device has been connected/disconnected but nothing happens because of it. You can see the detection state:


Current Setup:

  • DVI-D (Single Link) to DVI-I (Dual Link) (Monitor 1, working)
  • HDMI to HDMI (Monitor 2, working)
  • DVI-D (Single Link) to DVI-I (Dual Link) (Monitor 3, not working)


AMD Radeon R9 270x 4GB Ports:

  • 2x DVI-Dual Link
  • 1x HDMI
  • 1x DisplayPort


ASUS VC239H Monitors:

  • 1x DVI-D Ports
  • 1x HDMI
  • 1x VGA


I'm sure this should be able to be done, but if not...I know I should avoid using VGA to DisplayPort (I have an Active Adaptor from my old monitors) that never had HDMI or DVI ports


What would be the best adaptor to use:

  • DVI to DisplayPort DVI (Monitor Side) to DisplayPort (GPU Side)
  • HDMI (Monitor Side) to DisplayPort (GPU Side)


I would assume HDMI to DisplayPort would be the best one to pick, but I'm not 100% sure and what about the adapter being active or passive? Is there any need for an active adaptor, if so what would be the benefits?