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Second screen is very dark except during presentation


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#1 Sirawit

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Posted 10 June 2015 - 07:12 AM

Hi.

 

This seems to be weird problem and I can't find any answer to it. My current setup looks something like this (OS is Windows 8.1 Pro x64):

 

1433937160-pic1-o.png

 

My problem is, if I set the visualizer to use signal from computer, the projector will display very dark image except in Start screen, Win 8 apps or during Powerpoint presentation. But if I use visualizer's camera or use CRT screen everything looks fine.

 

Comparison of Windows 8 wallpaper from each screen:

 

All-in-one's screen:

1433938215-1140694985-o.jpg

 

CRT screen (Dismiss those scan lines):

1433938238-1140135285-o.jpg

 

Projector:

1433938265-1065924885-o.jpg

 

Projector (Opn PDF in Win8's Reader app):

1433938300-1153602885-o.jpg

 

Anyone have an idea why it's broken like this?

 

Thank you.

 

 


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#2 YeahBleeping

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Posted 10 June 2015 - 07:55 AM

I guess my first question is:  Has this ever worked the way you wanted?  What happens if you take the visualizer out of the loop?  Is this needed for the projector?  I mean can you go from the hdmi out to the vga adapter right to the projector taking the visualizer and splitter out of the mix?  I wonder if your just losing good signal splitting and need an active vga amplifier/splitter



#3 Sirawit

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Posted 10 June 2015 - 08:40 AM

Hi and thanks for your suggestions. I will try directly plugged projector to HDMI->VGA adapter. This is required because this PC has no VGA port. I may also need to borrow HDMI cable to test too. And yes all these things are required because each teacher wants their own combination of system so I need to add all of that.

 

Thank you.


If I don't reply back to you in 2 days, feel free to send me a PM.

 

“You’re lying… just like you were lying to me before. You have to hate me. I’ve been the worst daughter in the world… you should hate me.”

“But I don’t, Nyx. Because, Nyx, I’m your mother, and a mother will always love her daughter, no matter what.” -Past sins by Pen stroke.


#4 Sirawit

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Posted 10 June 2015 - 08:42 AM

And also, these things all worked together with old Acer All-in-one we have before but not with this new HP. Adding new hardware together with old ones are hard. :P

(Maybe that adapter is really the problem.)

 

Thank you.


If I don't reply back to you in 2 days, feel free to send me a PM.

 

“You’re lying… just like you were lying to me before. You have to hate me. I’ve been the worst daughter in the world… you should hate me.”

“But I don’t, Nyx. Because, Nyx, I’m your mother, and a mother will always love her daughter, no matter what.” -Past sins by Pen stroke.





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