How to duplicate desktop?

[nosro]

I have two cards (Radeon 6970). One has a real monitor and the other has a dummy plug.

How does one get the Catalyst Control Center to duplicate the desktop rather than extend the desktop?

As I currently have it, the dummy-plugged monitor extends the desktop, which I can't see since it is a dummy monitor. I have right-clicked everything and can't seem to find a "mirror" or "duplicate" option.

[1715468680]

1715468680

[hmblm1245]

Open the CCC (Right Click the desktop and choose Catalyst Control Center)
on the left side choose desktop management.
right click on the 2nd or 3rd monitor and choose enable

[skippy7]

Depending on your Windows version, I have found more success using OS-extended sharing vs. CCC

[Graet]

have you tried not using a dummy plug?
There is no need for them anymore unless you are using very old drivers