Laptop + external monitor: switched identities
Thread poster: Heike Behl, Ph.D.

Heike Behl, Ph.D.  Identity Verified
United States
Local time: 11:35
Member (2003)
English to German
+ ...
Apr 29, 2007

I'm using an external monitor connected to my laptop. Usually, I use the external one as extention of my laptop screen, ie. the laptop monitor's identity according to the display options is 1 (primary device), the external monitor is 2.

For some applications, I mirror the laptop's monitor on the larger external monitor since I cannot move the unresizable application window (computer games), ie. they both are my primary monitor. After switching back to my normal view tonight, both monitors switched their identity, the laptop's #2, the external monitor #1.

How can I change it back? The option in the display settings "Use this device as the primary monitor" is grayed out for the laptop.

And how did it happen (so I can avoid it in the future)? I'm running Windows XP Media Edition (basically XP Pro).

Thanks!


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Nicolas Coyer  Identity Verified
Colombia
Local time: 13:35
Spanish to French
+ ...
other control panel Apr 29, 2007

Do you have another control panel that says Intel(R) GMA for Mobile?

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Heike Behl, Ph.D.  Identity Verified
United States
Local time: 11:35
Member (2003)
English to German
+ ...
TOPIC STARTER
No Apr 29, 2007

Not that I'm aware of.


I have the option to choose #2 as primary when I also extend the desktop to this monitor. This unmarks the corresponding checkbox for #1 (external). Theoretically, one would expect that this should to the trick. But #2 (the laptop monitor) goes black, ie. the extension gets lost and, of course, it remains #2.

I could try to uncheck also the box "Extend my Windows desktop onto this monitor" for #1 (external) at the same time I pick #2 as primary monitor. But what happens if this doesn't set #2 as primary monitor and I'm stuck with two black monitors or with a laptop desktop from which I cannot access the taskbar or the start menu and can therefor not undo anything...


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Heike Behl, Ph.D.  Identity Verified
United States
Local time: 11:35
Member (2003)
English to German
+ ...
TOPIC STARTER
Back in business Apr 29, 2007

This approach seems a bit weird (and I still don't know how I managed to switch identities), but it worked:

I right-clicked in the laptop's desktop and changed the settings under Graphics Options > Output To to Notebook.



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Laptop + external monitor: switched identities

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