P2210, power saving mode when DVI or DP connected

Hello all,

I am having a really annoying issue. I have tried using DP from tower to P2210 DVI-D and the P2210 automatically goes to power saving mode and pitch black screen. But, the moment I take it off the cable, screen will show "No DVI-D cable" box roaming around.

The worst thing is that this configuration was working with no issue. I have also tried a DP to DP cable that I know works and still same thing.

I have also unplugged the P2210 power and pressed the power button for 30 seconds but still same issue.

Any help would be appreciated