Hey guy, I've been scratching my head with this one for the a day or two.
I purchased a 1440p DP2710 Korean monitor to use with my HD7990. I am unable to get the monitor to display an image. I am using the supplied dual link DVI-D cable and power cables and the display blue standby LED just flashes continuously but never displays an image even in the BIOS and safe-mode.
I managed to find an old Geforce 210 card and tested the monitor on that and it works without issue but this doesn't solve my problem.
I now know the monitor and the cable are not defective.
So is this a defective DVI port on my 7990 or a driver issue? The DVI port on the 7990 works over analogue with an adapter so I am not sure. I have the latest 14.4 non beta drivers from AMD.
I suspect the DVI port is dead as the card did take a tumble once when was installing a waterblock and the earthing shroud for the port was partially crushed! All the mini displayports work so until now it hasn't been a problem as the DVI port was only used for the analogue on an old VGA secondary monitor.
If it is the DVI port, is there any way I can diagnose or fix it or failing that, could I use an adapter on one of the mini displayports to drive the monitor?
Any help or suggestions would be great.