Both my screens are the same model and this is a problem

I'm running Win 8.1 64 bit.
Both of my screens are the same model from the same company.
I have an Asus motherboard and an Asus graphics card.
The one screen is hooked up to the graphics card with HDMI
and the other with a mini displayport cable.

When I try to use the Cleartype tuner or a program like QuickGamma, I can't tell which
screen I am tuning because both the screens have the same name!

Can I change the name of the screens?
For example from "Dell U2415" and "Dell U2415"
to "Dell U2415 left side" and "Dell U2415 right side"

Most grateful for your help.

Windows' own Cleartype tuner lets you choose which monitor you are tuning on. Can't you see the changes happening on the monitor you are tuning on ?

No, I can't see a difference -- aside from the fact that Cleartype is hard to discern whether
it's on or off, I have no way of knowing which screen I'm calibrating. Windows calls my main screen "2"
and calls the other screen "1" , but the Cleartype interface doesn't tell you which screen you're calibrating.
The Cleartype interface should at least have an "identify" button that flashes the huge number 1 or 2 depending
on the display.
So my question remains -- where can I change the name of the screen? Meaning, where is windows looking
when it pulls up the screen names? Do I have access to this to modify the name?

Elmwood said:

No, I can't see a difference -- aside from the fact that Cleartype is hard to discern whether
it's on or off, I have no way of knowing which screen I'm calibrating. Windows calls my main screen "2"
and calls the other screen "1" , but the Cleartype interface doesn't tell you which screen you're calibrating.
The Cleartype interface should at least have an "identify" button that flashes the huge number 1 or 2 depending
on the display.
So my question remains -- where can I change the name of the screen? Meaning, where is windows looking
when it pulls up the screen names? Do I have access to this to modify the name?

Click to expand...

Is that a third party program ?
I guess name of the monitor would be in the .inf file of it's driver. Windows and GPU drivers pick names and monitor's capabilities from EDID (Extended Display Identification Data) from chip (BIOS) in the monitor itself. I looked at Registry and could not find anything there but it should be there.
Just found in the monitor's Drver Details that it uses "oem123.inf file, upon reading it I found at the bottom under "(Strings)" it's name as displayed by the system, in my case it looks like this:

[Strings]
DISK="Samsung Monitor Installation Disk"
MonitorClassName="Monitor"
Samsung="Samsung"
SM2494LWa="SyncMaster 2494LW(Analog)"
SM2494LWd="SyncMaster 2494LW(Digital)"

One of two last lines can maybe changed and that should reflect at the device name in the system.

But I have two of the exact same screens -- the Dell U2415 -- they're both using the same set of drivers.
If I would change the name it woulde change in both instances!

I guess I could try to ask Microsoft support -- but wouldn't even know
where to ask. Can you tell me which tech support or help forum I should ask?

Each one should have own driver as any other device, no matter how many of same ones you have. If you look at Device manager and/or Devices and printers and their properties.
Can't you just turn one monitor off while setting other one. Did you look at GPU control program, might be something there too.
Microsoft support is not very helpful and very frustrating, may be better to look at support for monitor or GPU.