Hey all, owner of the Saffire R9 290 (100362SR) when the cards were first released. One reason I eyed this thing and eventually purchased it, was that I was under the impression that one could run all four outputs at once. I'm currently running 3 ds270's @ 1440p each (DVI/HDMI/DVI) alongside my older, previous hdmi monitor running from the DP output with a DP->HDMI cable @ 1080p.
The problem is that I am unable to run all four displays at once. Once I try to activate a 4th display, it states that I must deactivate one of the previous three (this occurs with both the extend & replace options.)
I can confirm, that the old 1080p panel CAN and DOES receive the DP output with its DP->HDMI cable. It's just that either the drivers, or the card itself does not allow for all four displays to operate at once - which is contrary to what sold me on this card to begin with...
What am I doing wrong? Am I out of luck...? I do enjoy using the card, and do not regret its purchase for the use of the 3 1440p panels, but this is a grave annoyance for me as I intended to put to use the 4th panel as an auxillary display near my MIDI keyboards >_<