Solved Confused About 3 Screen setup on a Radeon 7700

[Vaughn Whynot]

I was given a Radeon 7700 card and was told I could hook up 3 screen to it. I went out and bought a displayport to HDMI adaptor today after researching online. I came home and hooked up all my screens as

(left) 2nd Screen - Display port to HDMI
(center) Main Screen - DVI
(right) 3rd Screen - HDMI

Now the video card only has 3 ports on it, where my older 5800 series had 2 dvi, 1 hdmi and 1 display. But now after hooking up the screen, the 3rd screen on the display adaptor port is detected but can't be added/enable while the 2 other screens are on.

I was told you can't have 3 screens where 1 is HDMI and the other 2 are display port or DVI but then how would this card be able to suppose 3+ screens? am I missing something?

Friends said I need either/or one of these adaptors.

VGA to Displayport - http://www.ebay.ca/itm/Displayport-...eo_Cables_Adapters&hash=item4d17c2e6c9&_uhb=1

or

DVI to DisplayPort - http://www.ebay.ca/itm/DP-Display-P...eo_Cables_Adapters&hash=item19e6eb4a4b&_uhb=1

Vaughn

 

[Mellon Head]

What brand and model is the 7700 card? I need some more info in order to help.

 

[Vaughn Whynot]

What brand and model is the 7700 card? I need some more info in order to help.

1024MB ATI AMD Radeon HD 7700 Series (Sapphire/PCPartner)

 

[Mellon Head]

7750, 7770, or 7790?

 

[Vaughn Whynot]

7750, 7770, or 7790?

that part i can't tell you, the card just says 7700 series and every program like speccy and HWmontior reads 7700 series.

AMD Radeon? HD 7700 Series Graphics Cards

i feel stupid for not knowing but i honestly think it is just called a 7700

 

[Mellon Head]

I had a look at Sapphire and I think I found your card. Basically, Sapphire says that you need a Displayport capable monitor or approved Dongle to get 3 monitors to work under Eyefinity:

SAPPHIRE HD 7770 GHz Edition 1GB GDDR5#

(If that's not your card, the Eyefinity thing still applies)

So you're a little stuck, but I may have a solution. Where in Nova Scotia are you? I know a great local computer shop in Halifax that can probably help you get this going.

 

[Vaughn Whynot]

I had a look at Sapphire and I think I found your card. Basically, Sapphire says that you need a Displayport capable monitor or approved Dongle to get 3 monitors to work under Eyefinity:

SAPPHIRE HD 7770 GHz Edition 1GB GDDR5#

(If that's not your card, the Eyefinity thing still applies)

So you're a little stuck, but I may have a solution. Where in Nova Scotia are you? I know a great local computer shop in Halifax that can probably help you get this going.

i am 45 mins away from halifax and don't get their often. BUT I was talking to a friend who has a 7790 and he used this Displayport Male TO VGA Femal DP M TO VGA F Adapter Converter FOR PC Laptops | eBay VGA to DisplayPort adaptor because it somehow tricks the displayport or something.

not sure if you know anything about that. I can't afford a new screen or those 100+ dollar adaptors.

 

[Mellon Head]

I don't know whether that would work or not. It seems like the card needs a DisplyPort splitter to run more than two monitors. Are you able to get two monitors running at least?

 

[Vaughn Whynot]

I don't know whether that would work or not. It seems like the card needs a DisplyPort splitter to run more than two monitors. Are you able to get two monitors running at least?

yes I can run 2 screens perfectly fine. I did some research last night and found out that for it to work on 3 screens I need 1 native and 2 legacy.

So i had 3 legacy source (HDMI and 2 DVI) which wouldn't work.

So this adaptor i ordered to test has a built in chip or something that somehow works with my card and eyefinity because instead of the DP adapter i have now that reads up as a DVI it will read as a DP source which is Native even tho my screen is VGA.

It is confusing i know but my friend does it this way and whatnot.

Also, this guys does the setup i would have to do.
How to setup eyefinifty without active displayport adapter - YouTube

I will bookmark my thread and once I get the adaptor, i will let you know.

 

[Mellon Head]

Great. I look forward to hearing about it.

 

[Solarstarshines]

I don't know whether that would work or not. It seems like the card needs a DisplyPort splitter to run more than two monitors. Are you able to get two monitors running at least?

yes I can run 2 screens perfectly fine. I did some research last night and found out that for it to work on 3 screens I need 1 native and 2 legacy.

So i had 3 legacy source (HDMI and 2 DVI) which wouldn't work.

So this adaptor i ordered to test has a built in chip or something that somehow works with my card and eyefinity because instead of the DP adapter i have now that reads up as a DVI it will read as a DP source which is Native even tho my screen is VGA.

It is confusing i know but my friend does it this way and whatnot.


Also, this guys does the setup i would have to do.
How to setup eyefinifty without active displayport adapter - YouTube

I will bookmark my thread and once I get the adaptor, i will let you know.

The way i got mine to work was 2xHDMI and 1x DVI

 

[Dude]

I think the top one is display port in your pic Tommy

 

[Solarstarshines]

I think the top one is display port in your pic Tommy

You are correct that is a picture of a HD5770

I have 1 hooked up HDMI dvi and mini dvi to hdmi that is the set up thanks for catching my foul up lol

 

[AddRAM]

Maybe that`s why they gave it to you, a card with only 1 dvi port, I`d throw it in the trash

But seriously, I still don`t know why they`re putting a display port on the cards, does anyone here even have a monitor with that hookup ?

Read up on the card, email the manuf. see what`s up.

 

[Solarstarshines]

Maybe that`s why they gave it to you, a card with only 1 dvi port, I`d throw it in the trash

But seriously, I still don`t know why they`re putting a display port on the cards, does anyone here even have a monitor with that hookup ?

yeah there is no reason for them to have it should just be HDMI and DVI

 

[logicearth]

Well...my monitor has display port, most new monitors will. Esp., the new 4k monitors.

 

[AddRAM]

I`ve only seen it used when I hang larger monitors. Apparently you can daisy chain monitors with DP, Must read up some more on it.

http://www.displayport.org/cables/driving-multiple-displays-from-a-single-displayport-output/

 

[Vaughn Whynot]

......well then. My card has 1 dvi, 1 hdmi and 1 dp.

Some adaptors work, some don't

I called AMD and they said the same thing i found out online.

you need 1 native (DP) and 2 Legacy (HDMI or DVI) for the 3 screens to work.

very stupid i say.

So that is why i am testing this DP to VGA that my friend uses to see if it will work with my 7700 series.

 

[Solarstarshines]

......well then. My card has 1 dvi, 1 hdmi and 1 dp.

Some adaptors work, some don't

I called AMD and they said the same thing i found out online.

you need 1 native (DP) and 2 Legacy (HDMI or DVI) for the 3 screens to work.

very stupid i say.

So that is why i am testing this DP to VGA that my friend uses to see if it will work with my 7700 series.

I hope it works out for you

The card in the picture your card should look like that i don't know why AMD does things like this

 

[Solarstarshines]

Well...my monitor has display port, most new monitors will. Esp., the new 4k monitors.

I don't think mine came with one i am running a 27 in Viewsonic either VGA or HDMI mine is not 4k

Amazon.com: Viewsonic's VA2703 27-Inch Full HD 1080p Widescreen LCD Monitor - Black: Computers & Accessories