How Do You Enable DVI on a Dell Monitor? 2

[xyzuser]

I have a Dell monitor that has both VGA and DVI jacks. I use it with the VGA connector for my PC. But I want to hook up a TVBox 11 to the monitor. I connected the DVI cable between the Box 11 and the monitor and the PC to the Box 11 and get a message "cannot display this video mode" . I disconnected the PC from the Box 11 and stil get the message. Then I connected the monitor through the VGA cable with a DVI adapter on the Box end and still get the same message.

Just as a test, I connected the Box 11 to an older monitor I have, using the same VGA cable with a DVI adapter and I can see the Box 11 menu on the older monitor.

But this older monitor is not the monitor that I use on this PC. So how do I enable my regular Dell monitor to use DVI (or the VGA-DVI combination)?

Thanks

 

[CiscoGuy33]

xyzuser,

I was just doing this on one of my Dell 17 inch flat panels - the first button at the bottom should switch from Analog to digital to auto detect.

Hope this helps!


E.A. Broda
CCNA, CCDA, CCAI, Network +

 

[xyzuser]

CiscoGuy33

I have three butttons on the bottom of the screen:
-, +, [] . Which button do you mean? And when do I press it?

Thanks

 

[BadBigBen]

on the monitor, is it DVI-I or DVI-D?

http://en.wikipedia.org/wiki/Digital_Visual_Interface

the monitor may not be able to use ANALOG over DVI at all...

Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.

 

[xyzuser]

BadBigBen -

I don't know. I'll have to wait until I get home to check it. Thanks for the pointer to the descriptions.

 

[CiscoGuy33]

xyzuser,

I have about 450 Dell monitors at work (college) - 17's, 19's and even a few 20's and about 4 different styles of stands that hold the screens up.

All of them have 4 or 5 buttons at the bottom on the right side.
First button looks like a picture of a monitor, this is the one that controls the Digital, Analog or Auto
Second button is the menu
Third button is the -
Fourth button is the +
Fifth button is a circle with a line coming out of the top - this is the power button.

Another Dell monitor I have has only 4 (missing the 1st button - the other 4 are the same) I checked and it ONLY has an blue analog connection - No white DVI connection.

If all else fails go to

http://www.dell.com

and put in the model number for the monitor and you should get some docs for it.

E.A. Broda
CCNA, CCDA, CCAI, Network +

 

[xyzuser]

CiscoGuy33 -

Thank you for telling me which button it is. But when I press it, it shows only 1. Analog Input Settings . It does not show "2. DVI Input Settings" as a choice. But it has a DVI jack and the cable that came with the monitor has DVI-D connectors on both ends.

The monitor is a Dell 1504FP (according to the display when I press that button). Is there something else that has to be enabled to get the DVI as a choice?

And why isn't the DVI-A adapter on the VGA cable (on the TV Box 11 DVI-Out) working? According to the monitor it's still putting out a digital signal, not an analog signal. Unless the TVBox 11 is defective.

 

[xyzuser]

BadBigBen
The monitor doesn't say which DVI it is. It just has the universal DVI jack. But the cable that came with the monitor has DVI-D connectors on it.

What would prevent it from using DVI-over-analog? According to the reference you gave me, the DVI-A adapter allows it to work with all analog VGA devices.

And in fact it does work with my other, older analog-only Dell Monitor [E172FP] (So what I wrote in the previous post that the TVBox 11 DVI-out may be defective is wrong).)

 

[BadBigBen]

DVI-A adapter allows it to work with all analog VGA devices.

so it should, the adapter passes through the ANALOG signal to the cable to the monitor... the adapter should work with the analog input of the monitor...

the DVI plug, does not necessarily have ANALOG connected, which would mean that the adapter would not work at all...

and looking at the spec sheet of the monitor confirms this:

Video input signals  	Analog RGB, 0.7 Volts +/-5%, positive polarity at 75 ohm input impedance
                         Digital DVI-D TMDS, 600mV for each differential line, positive polarity at 50 ohm input impedance

source: Dell


Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.

 

[xyzuser]

I believe we agree it should work with either the VGA adapter (DVI-A) or the native DVI-D connector to the monitor's DVI jack.

I have tried for two days to reach Aver Tech Support and have not gotten a call back. So much for their support of customers. I'm going to have to return the Box 11 and try to find some other company that has comparable devices.
Thanks for your help.

 

[BadBigBen]

My opinion on the DVI port of the Aver TVBox, would be that the signals are only ANALOG, which you confirmed with the use of an adapter and the older monitor...

the TFT has both VGA and DVI-D, have you tried using the VGA port to see if it will display the Box's signal?

you could hook up the PC to the DVI-D port instead...


Ben

"If it works don't fix it! If it doesn't use a sledgehammer..."

How to ask a question, when posting them to a professional forum.

 

[xyzuser]

I found how to enable the DVI: press the "-" button while the "self-test" bar screen is displayed. However, it is a moot point. The Aver TV BOX 11 cannot handle VGA input from the pc (my pc doesn't have DVI) with DVI output to the monitor. That should be part of its design but it isn't. So with VGA (with DVI-A connector) on the PC-Aver connection and on the Aver-monitor connection I can switch betwen the pc screen and the Aver menu.

However, nothing I do gets the cable signal to the TV Box 11. No matter what setting I specify I get No Signal . (there are three cable settings: std, HRC, IRC - I don't even know what the latter two are)

Aver told me I need a splitter before the cable box so that I can bypass the cable box and have the signal go straight to the Box 11. But I just disconected the cable form the cable box and connected it directly to the Box 11 and got the same thing. (and anyway, that would not have been a satisfactory solution even if it had worked as it would have cut out my VCR from conecting to the Box 11).

Has anyone had similar "No Signal" problems, either with the Box 11 or with any of its predecessors?

If I can't get this to work, are there any good competing devices that are similar? (My pc is too slow for the the ATI devices)