Change Monitor Number in a Dual Display Environment

Samsung LCD monitor connected via DVI
Eiki projector connected via HDMI

In Display | Screen Resolution the Samsung is "currently your main display" but it is identified as Display 2 and is extended to the Eiki which is labeled as Display 1.

I need the Samsung to be 1 and the Eiki to be 2.

I know that in Control Panel\Appearance and Personalization\Display\Screen Resolution I can grab the picture of a display and move it to the right or left of another display. That does not change the display number associated with the monitor or projector.

In the Advanced Settings, I can access the AMD Radeon Catalyst Control Center. In here, I have been able to change the display numbers. However, after the changes are applied and the monitors are correctly identified in the Catalyst Control Center, when I return to Control Panel's Screen Resolution settings, the display numbers have not changed. At this point, Windows and Catalyst Control Center are oppositely numbered. How can I change the numbers associated with the displays?
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Nick RhodeIT DirectorCommented:
It would appear different if the Samsung was the one connected via HDMI vs DVI.  It goes by the order of precedence.

HDMI > DVI > VGA etc.

So if you shut down the system and connect the Eiki projector via VGA it would show up as #2 because it is below DVI.
TUMIhqAuthor Commented:
Thank you NRhode. Now, the question is, how can I change that order? I cannot change the connection of the projector. I am willing to use DVI or VGA to my monitor.
Nick RhodeIT DirectorCommented:
You would have to have HDMI to the monitor if there is HDMI to the projector.  I guess one thing you can try is to unplug the projector, reboot the system, your monitor then should be #1.  Then connect the HDMI.  This will most likely revert back on reboot or shutdown because of the order above.  If HDMI is built on the card that is primary, DVI secondary, vga 3rd.  So when you boot the PC it will check those ports in that algorithm.

So if there is a connection in HDMI, the PC on boot up will register that as 1st display, then it checks DVI and registers it if something is plugged in as 2nd, and then vga will register only if something is plugged in.

So now if HDMI port is empty, DVI will register 1st because there is no device connected to HDMI.  The PC will always pick the best choice 1st when it comes to display.

In all honesty is there a specific reason you want to switch or need the numbers reversed?  It does not affect the OS in anyway for what number it is.

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Displays / Monitors

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