DVI and VGA

[Guest Bob Day]

Using Windows XP (latest updates), Dell Latitude D820 and View Sonic monitor…

I have the VGA on the monitor connected to a KVM switch to view two

different computers, this has always worked fine.

 

The Dell laptop docking station has a DVI (in addition to VGA) and the View

Sonic monitor has a DVI (in addition to a VGA). So, I thought if I hooked up

the DVI, and left the VGA hooked up, it would simply be a matter of using the

monitor's on screen input selector to choose Analog (vga) or Digital (dvi).

However, when ever I choose DVI, it displays analog, as if there is nothing

coming across on the DVI cable.

 

Do you have to do something on the computer to have it display over the

DVI?

 

Anybody know what the problem might be?

 

Thanks

Bob

[Guest p]

Re: DVI and VGA

 

Bob Day wrote:

> Using Windows XP (latest updates), Dell Latitude D820 and View Sonic monitor…

> I have the VGA on the monitor connected to a KVM switch to view two

> different computers, this has always worked fine.

>

> The Dell laptop docking station has a DVI (in addition to VGA) and the View

> Sonic monitor has a DVI (in addition to a VGA). So, I thought if I hooked up

> the DVI, and left the VGA hooked up, it would simply be a matter of using the

> monitor's on screen input selector to choose Analog (vga) or Digital (dvi).

> However, when ever I choose DVI, it displays analog, as if there is nothing

> coming across on the DVI cable.

>

> Do you have to do something on the computer to have it display over the

> DVI?

>

> Anybody know what the problem might be?

>

> Thanks

> Bob

>

 

And what happens if you just hook up the DVI and don't hook up the VGA?

 

P

[Guest M.I.5¾]

Re: DVI and VGA

 

 

"Bob Day" <BobDay@discussions.microsoft.com> wrote in message

news:2352BA34-08E5-4E2E-B4AC-B3FB0CB91469@microsoft.com...

> Using Windows XP (latest updates), Dell Latitude D820 and View Sonic

> monitor.

> I have the VGA on the monitor connected to a KVM switch to view two

> different computers, this has always worked fine.

>

> The Dell laptop docking station has a DVI (in addition to VGA) and the

> View

> Sonic monitor has a DVI (in addition to a VGA). So, I thought if I hooked

> up

> the DVI, and left the VGA hooked up, it would simply be a matter of using

> the

> monitor's on screen input selector to choose Analog (vga) or Digital

> (dvi).

> However, when ever I choose DVI, it displays analog, as if there is

> nothing

> coming across on the DVI cable.

>

> Do you have to do something on the computer to have it display over the

> DVI?

>

 

Most graphic cards auto detect what is connected to them. Some (but not

all) will auto set to VGA whenever one is connected even if a DVI is also

connected.