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Windows 7: HD5450 Triple Monitor Support Problem

04 Jan 2011   #1
Mundle101

Windows 7 professional 64bit
 
 
HD5450 Triple Monitor Support Problem

I recently upgraded my Graphics Card to a Radeon HD 5450 with Triple monitor support,
it has 3 outputs 1-DVI ,,1-VGA,, 1-Display port hooked up to 3 monitors, 2 samsung 19" wide screens and a I-INC 25" widescreen... Currently i have the 25" in the middle with a 19" on either side,, The Problem is when i go to extend the desktop in the Appearance box, and click apply i get a error ( Unable to save Display settings ) it will let me use that monitor i couldn't extend only if i disable another display first (IE: my main monitor) all the drivers for monitors and card is up to date,,

25" plugged in with a Display Port to HDMI adapter
19" plugged in with a Standard VGA cable
19" plugged in with a DVI cable

AND I'm about to pull my hair out on this, any input would be greatly Appreciated.


My System SpecsSystem Spec
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05 Jan 2011   #2
Johnathan Lyman

Windows 7 Ultimate 64-bit
 
 

What I would do first is clear out the multiple-monitor setting by switching to just one monitor, restarting that way, and re-apply the desktop extension.

When you click "Detect" does it give you all three screens to work with, at least?
My System SpecsSystem Spec
05 Jan 2011   #3
Mundle101

Windows 7 professional 64bit
 
 

Yes it shows the 3rd monitor when i hit detect,, I will try to restart with just the one monitor and attach one at a time to see if it works

Thanks
My System SpecsSystem Spec
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05 Jan 2011   #4
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

If the Display Port adapter is not of the "Active" variety you'll never get all three working. Is your adapter on this list?

AMD Eyefinity Validated Dongles
My System SpecsSystem Spec
05 Jan 2011   #5
Mundle101

Windows 7 professional 64bit
 
 

Yea i think that's the problem, the display port i have is DP-HDMI i got off Amazon for like 20$ and it works fine as I'm using it now with a dual monitor configuration, so i need to get the right dongle to use all 3?,, as i understand it u need to have a passive DP configuration for using more than 2 monitors on the same card
My System SpecsSystem Spec
05 Jan 2011   #6
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by Mundle101 View Post
...so i need to get the right dongle to use all 3?...
Yes.

Quote:
...as i understand it u need to have a passive DP configuration for using more than 2 monitors on the same card
Exactly backwards. Passive Display Port works with one or two monitors. The only way to get the third working is with the Active dongle.

If I sound very sure of myself it's because I bought a new XFX 6870 and a third monitor two days ago. The box for the video card said it had two Display Port connectors, so I bought an AMD-Certified DP-to-DVI dongle. Unfortunately, the Display Ports on the card are of the Mini Display Port variety and my dongle was the regular type. No one seems to stock such a critter as the Mini DP-to-DVI locally so I took a chance on a passive dongle. Everything I had read told me it wouldn't work - and it didn't. I had the same result as you: I could get any two monitors I wanted to work, just not all three at the same time.

I almost jammed my 4870 card back in there out of frustration, but my PSU would be pushing its luck with two video cards in it. I ended up ordering one of these from Amazon:

Accell B087B-006B UltraAV Mini DisplayPort to DVI-D Single-Link Active Adapter ATI Certified (Black)

Amazon.com: Accell B087B-006B UltraAV Mini DisplayPort to DVI-D Single-Link Active Adapter ATI Certified (Black): Electronics

Now I'm just waiting for it to be delivered...

EDIT: See Post #4 for the link to AMD/ATI certified dongles if you don't want to get the one linked above.

EDIT (AGAIN): For some strange reason, the link to the AMD/ATI certified dongles includes some Passive ones. GET THE ACTIVE!!!
My System SpecsSystem Spec
05 Jan 2011   #7
Mundle101

Windows 7 professional 64bit
 
 

Thanks for your Help i never heard of a display port till recently, Ive got the right one shipping soon..
My System SpecsSystem Spec
05 Jan 2011   #8
Johnathan Lyman

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by Mundle101 View Post
Thanks for your Help i never heard of a display port till recently, Ive got the right one shipping soon..
Let us know if it works!
My System SpecsSystem Spec
05 Jan 2011   #9
profdlp

Main - Windows 7 Pro SP1 64-Bit; 2nd - Windows Server 2008 R2
 
 

Quote   Quote: Originally Posted by jelyman View Post
Let us know if it works!
Definitely do that - this thread will almost certainly be helpful to someone else, too.
My System SpecsSystem Spec
05 Jan 2011   #10
Johnathan Lyman

Windows 7 Ultimate 64-bit
 
 

Quote   Quote: Originally Posted by profdlp View Post
Quote   Quote: Originally Posted by jelyman View Post
Let us know if it works!
Definitely do that - this thread will almost certainly be helpful to someone else, too.
Helpful to me. I got a graphics card with DP today and didn't know about active/passive dongles.
My System SpecsSystem Spec
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