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 http://support.amd.com/en-us/search/faq/170 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:
- 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 Sapphire 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?