Windows sometimes boots but only displays on one screen out of the two?

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Sammyjo201

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Dec 27, 2015
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Hello, I've had this issue twice now and I don't know what's causing it.

Sometimes I turn on my PC, It does the normal boot, you can see the BIOS splash screen on both monitors and you see the Windows logo loading on both screens but then Only my right monitor turns on at the login. The other one is still "on" but it's just black. The issue is fixed with a reboot.

Anyone familiar with this issue? Any help and / or fix for this would be appreciated.

Thanks
 
Solution
sfootie
I suspect what is happening is that when you get to the login screen, you are running in Extend mode, so you can have separate windows for separate monitors. So do you want extend mode on or the screens to be duplicated?

If you want it in extend mode, it should be selected by default. Having one screen black during the login is perfectly normal. Press the Windows key and P and then select extend. You can then go into settings > displays to then change more monitor settings.

If you want the two screens to be duplicated, press the Windows key and P and then select duplicate, and then you will see the same thing on both screens.

I would also try updating your graphics card drivers, and please forgive me if I misunderstood your original...
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sfootie

sfootie

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May 31, 2015
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I suspect what is happening is that when you get to the login screen, you are running in Extend mode, so you can have separate windows for separate monitors. So do you want extend mode on or the screens to be duplicated?

If you want it in extend mode, it should be selected by default. Having one screen black during the login is perfectly normal. Press the Windows key and P and then select extend. You can then go into settings > displays to then change more monitor settings.

If you want the two screens to be duplicated, press the Windows key and P and then select duplicate, and then you will see the same thing on both screens.

I would also try updating your graphics card drivers, and please forgive me if I misunderstood your original question.

Hope this helps.
 
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