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tw1st
Posts: 6112
Location: New Jersey
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 Posted: Fri, 16th Sep 2011 04:16 Post subject: Multiple Displays Help |
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Last weekend I purchased a new Radeon 6950 ( http://www.newegg.com/Product/Product.aspx?Item=N82E16814161372 )
I'm having a problem I cannot figure out for the life of me...
The card has two DVI ports, I am using the bottom DVI-D Dual Link port to connect to my PC monitor with a DVI-D cable which works flawlessly. The second port is a DVI-I Dual Link port, which I use to connect to my 32" Vizio, it is connected by a VGA cable with a DVI-I adapter, this does not work.
I have tried different adapters, different cables, and I cannot get my Vizio to display picture no matter what combination I use. To make sure the DVI-I port wasn't messed up I plugged in my PC monitor and it worked perfectly, but when I try to connect my TV via the VGA cable with the DVI-I adapter it wont work.
Before this I was using a 5850 with the same monitor/cable setup and everything worked fine. Wtf is going on here?
| BenQ XL2420T 24" 120Hz | Ducky Shine III 9008 White LED - Brown MX | Logitech G9x |
| Corsair Carbide 400R | Asus Sabertooth z77 | i7 3770K @ 4.3Ghz - 1.200v | CM Hyper 212 Evo - Push/Pull |
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| Posted: Fri, 16th Sep 2011 09:12 Post subject: |
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Have you tried tampering with the settings? You know, extending display and such...
"Quantum mechanics is actually, contrary to it's reputation, unbeliveably simple, once you take the physics out."
Scott Aaronson | chiv wrote: | | thats true you know. newton didnt discover gravity. the apple told him about it, and then he killed it. the core was never found. |
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 16th Sep 2011 09:58 Post subject: |
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Ewwww VGA 
No digital inputs on your Vizio at all? Anyway, does CCC detect it?
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| Posted: Fri, 16th Sep 2011 11:06 Post subject: |
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Does the second DVI port work with the monitor?
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tw1st
Posts: 6112
Location: New Jersey
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| Posted: Fri, 16th Sep 2011 13:32 Post subject: |
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Vizio has no digital input at all, the second DVI port does work on my monitor, and yes the PC detects them both. I have messed around with the settings.... a lot.
Sometimes the vizio will work, but the screen will be all red, or all green (if i move the vga cable by the DVI port a bit).
was thinking my vizio doesnt support a digital signal? but then why would my old 5850 work without issue.... i know the card isnt messed up because both ports work perfectly with my pc monitor. WTFUX?
| BenQ XL2420T 24" 120Hz | Ducky Shine III 9008 White LED - Brown MX | Logitech G9x |
| Corsair Carbide 400R | Asus Sabertooth z77 | i7 3770K @ 4.3Ghz - 1.200v | CM Hyper 212 Evo - Push/Pull |
| SLI eVGA 4GB GTX980 ACX SC | Vengeance 16GB RAM 1600 DDR3 | AX850w PSU | Samsung 840Pro 128GB SSD | WD Black 1TB HD |
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 16th Sep 2011 14:04 Post subject: |
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Well if you're using VGA it won't be using a digital signal, VGA is analog. I haven't used a VGA connector in years, so I don't know if there's any options to force analog output in CCC?
Then again, you say the image changes when you move the connector - that would indicate a problem on that end, not software.
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tw1st
Posts: 6112
Location: New Jersey
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| Posted: Fri, 16th Sep 2011 15:30 Post subject: |
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Well, if I'm using a VGA with a DVI connector is it still only limited to VGA signal?
I know for a fact that the port isn't messed up because both ports work on my monitor, but neither with the vizio.....
which is strange because with my old 5850 I had no problems.
| BenQ XL2420T 24" 120Hz | Ducky Shine III 9008 White LED - Brown MX | Logitech G9x |
| Corsair Carbide 400R | Asus Sabertooth z77 | i7 3770K @ 4.3Ghz - 1.200v | CM Hyper 212 Evo - Push/Pull |
| SLI eVGA 4GB GTX980 ACX SC | Vengeance 16GB RAM 1600 DDR3 | AX850w PSU | Samsung 840Pro 128GB SSD | WD Black 1TB HD |
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Werelds
Special Little Man
Posts: 15098
Location: 0100111001001100
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| Posted: Fri, 16th Sep 2011 15:33 Post subject: |
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| tw1st wrote: | Well, if I'm using a VGA with a DVI connector is it still only limited to VGA signal?
I know for a fact that the port isn't messed up because both ports work on my monitor, but neither with the vizio.....
which is strange because with my old 5850 I had no problems. |
Was the port on your 5850 a DVI-I port as well?
And yes, if your Vizio only accepts VGA input you can only use analog, VGA output. Using a DVI-I convertor is purely for convenience, because the added data DVI can hold is completely wasted.
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