I have an MSI R7770-PMD1GD5. It has three output ports. DVI, HDMI, DisplayPort (using a DisplayPort to DVI adapter). However, I couldn't get it to have all 3 outputs enabled at the same time. Only two at most. Tried under both Linux and Windows.
After some research, it seems that I might need an active DisplayPort to DVI adapter. At this point I could only assume the adapter I have is an passive one.
I'm rather new to AMD/ATI cards and DisplayPorts. Is it safe to assume an active adapter will solve the problem?