DVI-I or DVI-D what monitors and cards have what?

videobruce

Golden Member
Nov 27, 2001
1,072
11
81
After owning a Plannar PL190M LCD monitor for 2 months and having problems with the DVI signal getting reconized all the time and talking to Planar a few times, I called Plannar again and out of the blue I was told this monitor needs a DVI-D signal!
This was one of the two guys I talked to before and nothing was said about this.

Now, after looking at the specs of the monitor in the manual which doesn't say it even has a DVI connectioneans DVI-D and buying another video card with the thought there was a problem with the old card I have a setup that doesn't work properly because of the lack of information and compatability.


I did as quick look around through the ATI, PowerColor and Sapphire sites and some don't mention what connector they use, or it isn't clear. Plannar surely didn't say it was required.

The equipment involved are:
http://www.planar.com/Products/flatpanel_monitors/pl_flatpanel/PL190M.html
http://www.sapphiretech.com/vga/9100.asp
http://www.power-color.com/r96a-c3n.htm


Questions:
How many others have or had this problem? Or even aware of this?
How much a issue on other monitors is this?

I spent a couple of months researching LCD displays and all the forums I visited, nothing was brought up there is a problem here.
 

rbV5

Lifer
Dec 10, 2000
12,632
0
0
DVI-I carries the DVI-D signal and analog VGA. Shouldn't make any difference what connector the card has.
 

rbV5

Lifer
Dec 10, 2000
12,632
0
0
The only difference is that DVI-I has extra pins for the analog signal. Use a DVI-D cable, its the same thing.
 

videobruce

Golden Member
Nov 27, 2001
1,072
11
81
There is a problem with the set reconizing the signal sometimes at boot.

It's NOT a cable issue. The signal is there but the set must get confused. I thought it might of been the card, but with the 2nd card the problem looks like it is still there.
 

rbV5

Lifer
Dec 10, 2000
12,632
0
0
It may not be a cable issue, but I seriously doubt the connector on the card makes any difference in the signal delivered to the LCD...they're exactly the same signal no matter which connector was used by the card maker.

Here is a lengthy thread concerning signal loss and DFP monitors. Maybe some useful info for you in there.
Link
 

Peter

Elite Member
Oct 15, 1999
9,640
1
0
Cards, with few exceptions, have DVI-I outputs. Display devices either use the -D(igital) signal or the -A(nalog) one.

Sure, a display device that connects to BOTH the -D and -A signals on an -I connector produces random results, depending on whether the graphics card's BIOS then chooses to enable the analog or digital path.

You can solve that by putting a single-purpose DVI-D cable inbetween.
 

videobruce

Golden Member
Nov 27, 2001
1,072
11
81
Originally posted by: rbV5
It may not be a cable issue, but I seriously doubt the connector on the card makes any difference in the signal delivered to the LCD...they're exactly the same signal no matter which connector was used by the card maker.

Here is a lengthy thread concerning signal loss and DFP monitors. Maybe some useful info for you in there.
Link
Thanks I did see that posted elsewhere!

I looked at the cable that is hooked up to the monitor and it is a DVI-D single link. Which means it shouldn't matter what card it is, correct?

 

Peter

Elite Member
Oct 15, 1999
9,640
1
0
Right. The graphics card's BIOS should detect the digital link being in use and the analog VGA signal being unused, and thus enable the digital path and disable analog.