Has anyone seen active DisplayPort-->DVI adapters for sale yet?

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DJBnJack

Junior Member
Oct 5, 2009
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Anyone confirm that the RAMElectronics one works for eyefinity with 3 non-displayport monitors? It sounds like (too good) a deal!
 
Obsoleet

Obsoleet

Platinum Member
Oct 2, 2007
2,181
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Originally posted by: tommo123
i'm sure i found one somewhere that was active and in the $20 range. i however am in the UK and the ones here are the weird apple ones which cost stupid money or are passive only. Hopefully, there'll be options for us brits in jan when i plan to get a 5870

EDIT

how about this?

to quote:

These are active adapters that convert the signals, so they should work with any DisplayPort Device!
Click to expand...
Click to expand...

Anyone try this yet? I wouldn't trade my Asus lcd for anything even though it doesnt have DP... but curious if I can run my 2005FPW through DP using that.
 
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ITSANSS

Junior Member
Oct 22, 2009
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Anyone tried this RAMElectronics adapter yet?

Looking into Eyefinity and this is the best price for an adapter so far, no doubt.

Thanks

 
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aka1nas

Diamond Member
Aug 30, 2001
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I'm a little suspicious of that one, all of the other active adapters are powered in some fashion (either through a USB plug or a wall wart).
 
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ITSANSS

Junior Member
Oct 22, 2009
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I'm suspicious of the same thing, but it has big bold letters saying that it'll work. lol

I don't wanna' be the guinea pig! :)
 
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TemjinGold

Diamond Member
Dec 16, 2006
3,050
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Question for you guys:

I'm currently using 2 HDTVs through my 4890 with HDMI for both (2 DVI -> HDMI adaptors that are directly from XFX.) The problem is I can only get the sound to pass to one of the two displays and not both. I was told by people here that before there's only 1 sound chip on the video card, that's why.

If I get say a 5870 and use the HDMI port plus this active DP to HDMI for the other TV, will I get sound to both units (since everyone says the HDMI and DVI share while the DP is on its own)? My 4890 is good enough for me but if it means getting sound to both TVs, I would be willing to upgrade to either that or a 5850 just for this capability. Thanks!
 
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tommo123

Platinum Member
Sep 25, 2005
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it should carry audio, it's meant to be an alternative to HDMI. without audio it's an alternative to DVI only
 
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MrPK21

Junior Member
Nov 3, 2009
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TemjinGold said:
The adaptor mentions video/audio as well, hence the question...
Click to expand...

i have just brought a hd 5850, thinking i could run 3 or 4 screens lol

right were to stat...

the technology used for displayport does suport audio
but from what i can see the 5850 only send the sound down the hdmi conector

i brough from ebay displayport to hdmi
http://cgi.ebay.co.uk/DisplayPort-t...uting_CablesConnectors_RL?hash=item53dce26937
this was not an active 1 and no sound on the second screen.

i have 4 monitor conected but am only able to run any 2 at 1 time.


i phone ATI this was my e-mail replay.

[Dear Paul,
As per our phone conversation, I send you all the information I could find.
First, the reason why one of the 3 signals outputed on the HD 5800 series has to be display port is because the display port signal - contrary to others- does not need to use a RAMDAC. As the card only has 2 RAMDACs, a display port signal enables you to have 3 displays instead of only 2 (one by RAMDAC).

As it is, the most straightforward solution is to plug the display port to a native display port input. Nonetheless, an ACTIVE Display port to DVI adapter, such as the ones sold by Dell should do the job. We are not aware of there being any active display port to HDMI converter available in the market at the moment. The converter you are currently using is therefore probably a passive converter and would no allow the signal to properly go through. This is why you did not manage to run 3 screens at the same time.

It would be possible to run 3 or 4 screens simultaneously (usign extended mode) while playing a game with 2 HD Radeon cards like 2 HD 4850 cards for example, provided the cards were NOT set up in crossfire mode and the game supported extended mode.
A dual core card such as the HD Radeon 4870 x2 would not offer you that possibility as it would act as a crossfire set up and be optimised for performance on one screen only.

I hope this is helpful.
Kind Regards,

SO...........

what do i do now i am running 42" screen that i don't want to change
i could sell the g card with out making a loss

but want a setup that support 3 monitors, would it pay me more to get a second g card.

as the dell adapter is not cheap.
 
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meinsanfran

Junior Member
Jan 5, 2010
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exar333

exar333

Diamond Member
Feb 7, 2004
8,518
8
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aka1nas said:
I'm a little suspicious of that one, all of the other active adapters are powered in some fashion (either through a USB plug or a wall wart).
Click to expand...

Hmm...I would like to see the "wall wort" option. Does this just leach power from the wall? Some slug-like being? :cool:
 
Modelworks

Modelworks

Lifer
Feb 22, 2007
16,240
7
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tommo123 said:
it should carry audio, it's meant to be an alternative to HDMI. without audio it's an alternative to DVI only
Click to expand...


I think people are assuming display port is just a different connector for HDMI or DVI. It isn't. It is totally different in many ways.

Display port does away with a lot of redundant hardware. Right now with HDMI or DVI you have a RAMDAC in the video card and an equivalent in the display. You also have various hardware for color, sharpness, etc in the display. That adds up quick when you start using more than 2 displays. Where display port differs is it is a direct connection to the LCD controller. There is no RAMDAC because it talks directly to the LCD controller there are no parts processing the video in between. There is also no need in the display for things like menus where the user sets color or brightness and so no need for that hardware either, again cutting cost. The video card controls everything from color to when to draw frames. The LCD becomes a dumb panel only showing what it is sent, no middleman.


The new DDM standard eliminates unnecessary duplication of complex electronics that are incorporated into displays now to let them mimic older CRT monitors and enable backward compatibility with any graphics subsystem. Duplication of scaling, color dithering, and other functions in the graphics hardware increases cost; eliminating duplication reduces costs and increases the reliability of the DDM display.

The standard specifies the connector and pin assignments to be used on panels for direct drive display applications. DDM Displays do not have complex timing or internal display controllers but instead connect directly to the graphics subsystems and convey native timing to the graphics subsystem for correct configuration
Click to expand...

One advantage to this is that with the video card controlling everything it makes it so that every display has the same settings, no need to match color, brightness , on menus for each display. The signal is also much easier to process in the display cutting cost and since it isn't bogged down with DRM cheaper designs can be done. Audio is done separate , which it should be. Look at all the issues people have with HDMI and audio. Engineers warned about this, but got overruled by people like the MPAA who wanted 100% content protection, afraid people would steal the soundtracks. I wish home LCD were going to this but that is not the target market. Display port is only computers.
 
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