3-Monitors on AMD R9 280 Sapphire ... only 2 show

SecondWind-SK wrote on 5/15/2015, 1:02 PM
I'm trying to set up a Sony HDTV as a third monitor. HDMI out to 27" Dell (Mon !), DVI out to 24" ASUS (Like to have this a Mon 2), and Display port to HDMI adapter to Sony HDTV as Mon 3. Right now I have the Dell and the Sony operating. Can't get the ASUS to come on line through either of the DVI outs. Is there a solution to this. I've read that one monitor has to be a display port monitor for all three to work. I thought the adapter, Display Port to HDMI, would satisfy this. Maybe not. Anyone got an idea to move me forward? Thanks for any help..... Steve K


OldSmoke wrote on 5/15/2015, 1:06 PM
I would use 2x DVI and either the HDMI or Display port for the 3rd monitor; that works on my R9 290.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

SecondWind-SK wrote on 5/15/2015, 1:17 PM
Thanks Old Smoke. I'll try that.
TheHappyFriar wrote on 5/15/2015, 1:34 PM
I needed an ACTIVE display port adapter to get the 3rd monitor working.
SecondWind-SK wrote on 5/22/2015, 12:14 PM
Active Display Port to HDMI adapter solved my problem. Now up and running with 3 monitors. Thanks all.