Displayport issues

[Ruptga]

I'm not even sure this is the right forum, but screw it.

I just got a displayport-only monitor off of woot, and my only graphics card is an ATI 3850 (which outputs dvi). I bought a DP to DVI adapter, and while I ended up with the right number of male and female plugs the monitor doesn't seem to be getting a signal.

So, either this DP to DVI adapter won't also do DVI to DP, or something is broken. I've searched for DVI to DP, but Amazon is showing me everything from HDMI to VGA down to DP to DP. Also DP can either be passive or active.

Trying to figure out this adapter crap is giving me a headache, so I'm just going to defer to you guys before I buy some other adapter that doesn't work.

 

[Destiny]

I'm not even sure this is the right forum, but screw it.

I just got a displayport-only monitor off of woot, and my only graphics card is an ATI 3850 (which outputs dvi). I bought a DP to DVI adapter, and while I ended up with the right number of male and female plugs the monitor doesn't seem to be getting a signal.

So, either this DP to DVI adapter won't also do DVI to DP, or something is broken. I've searched for DVI to DP, but Amazon is showing me everything from HDMI to VGA down to DP to DP. Also DP can either be passive or active.

Trying to figure out this adapter crap is giving me a headache, so I'm just going to defer to you guys before I buy some other adapter that doesn't work.

Which type of DVI connection does your ATI 3850 have? And which kind is the DVI connection does your DVI to DP have? That maybe the issue... also if you don't mind me asking what is the Model# of the monitor and resolution type?

For your reference:
http://en.wikipedia.org/wiki/Digital_Visual_Interface

 

[Ruptga]

Which type of DVI connection does your ATI 3850 have? And which kind is the DVI connection does your DVI to DP have? That maybe the issue... also if you don't mind me asking what is the Model# of the monitor and resolution type?

For your reference:
http://en.wikipedia.org/wiki/Digital_Visual_Interface

Card outputs DVI-I dual, adapter 1 has pins for DVI-A. Monitor is HP Elite L2201x. The second adapter is actually this. Yes it converts to VGA. The monitor I had been using doesn't have any DVI inputs so I had a dvi-vga adapter and only a VGA cable, therefore I looked for a DP to VGA cable. I left it out of the OP because it didn't seem to matter, but now I am not so sure.

 

[palladium]

I suspect your monitor only accepts DP signal, and unfortunately DP and DVI/VGA signals are not compatible with each other. You'd need to find an active DP-DVI adaptor (an adaptor that actively converts DVI signal to DP signal) for this to work. Something like this: http://lizardpc.com/?p=74

See http://en.wikipedia.org/wiki/Display_port

 

[Destiny]

Assuming this is your card:
http://hothardware.com/articles/ATI_Radeon_HD_3870_and_3850_55nm_RV670/

It has two DVI-I (Dual links)

And this is your monitor (It looks pretty awesome btw!)
http://www.youtube.com/watch?v=_rPTcr3VlV8


EDIT: Listen to Palladium

 

[ViRGE]

\EDIT: Listen to Palladium

Indeed. What you need is an active DVI to DisplayPort adapter. And note the order on that: you're actively converting DVI to DP, not the other way around.

DVI to DP adapters are expensive and rare. It's probably going to cost you $150 or so, which is to say it would be easier to just buy a new video card.

http://www.atlona.com/Atlona-DVI-to-Mini-DisplayPort-Converter-p-17859.html

 

[Ruptga]

Well fuck. I had suspected as much, though. Thanks for the help guys.