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Dual TFTs with different resolutions

 
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john

External


Since: Sep 01, 2006
Posts: 2



(Msg. 1) Posted: Tue Mar 27, 2007 1:15 am
Post subject: Dual TFTs with different resolutions
Archived from groups: alt>comp>periphs>videocards>nvidia (more info?)

I am trying to choose an AGP graphics card to support two TFTs:
1680x1050 and 1280x1024 under XP (Pro). It doesn't need to be terribly
fast (no games - but a needs to cope with still-photo editing and
Coreldraw)

Can anyone help me understand:

- Am I safe to assume that any card that supports 1900x1200 will
definitely also support lesser sizes (like 1680 x 1050)? Some
manufacturer websites list perhaps a dozen specific resolutions
supported, others mention maximum resolution only.

- Will any card that specifies that it will support two monitors work
properly with a simple DVI splitter cable? Some cards do have two DVI
sockets, but most of the cards seem to have one DVI and one 15-pin VGA
- and it seems daft to degrade to analogue for the connection to a
second DVI display.

- How do I check which cards will support two screens at different
resolutions? - I've read some cards described as only supporting two
screens if they run at the same resolution.

John Geddes
England

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Paul57

External


Since: Oct 09, 2004
Posts: 2509



(Msg. 2) Posted: Tue Mar 27, 2007 12:01 pm
Post subject: Re: Dual TFTs with different resolutions [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

john.TakeThisOut@starmarkassociates.co.uk wrote:
> I am trying to choose an AGP graphics card to support two TFTs:
> 1680x1050 and 1280x1024 under XP (Pro). It doesn't need to be terribly
> fast (no games - but a needs to cope with still-photo editing and
> Coreldraw)
>
> Can anyone help me understand:
>
> - Am I safe to assume that any card that supports 1900x1200 will
> definitely also support lesser sizes (like 1680 x 1050)? Some
> manufacturer websites list perhaps a dozen specific resolutions
> supported, others mention maximum resolution only.
>
> - Will any card that specifies that it will support two monitors work
> properly with a simple DVI splitter cable? Some cards do have two DVI
> sockets, but most of the cards seem to have one DVI and one 15-pin VGA
> - and it seems daft to degrade to analogue for the connection to a
> second DVI display.
>
> - How do I check which cards will support two screens at different
> resolutions? - I've read some cards described as only supporting two
> screens if they run at the same resolution.
>
> John Geddes
> England
>

Just some random links:

ftp://download.nvidia.com/Windows/91.33/
ftp://download.nvidia.com/Windows/91.33/91.33_ForceWare_nView_User_Guide.pdf

"FX5200 resolution issue with 2 widescreen monitors"
http://forums.nvidia.com/index.php?showtopic=19854

"Advanced Timing and CEA/EIA-861B Timings"
http://www.nvidia.com/object/advanced_timings.html

With the warning on the last page, I presume the modern 7 series
cards are OK.

For ATI, this is the best manual I know of. You cannot even download
this from ATI themselves, and since this is dated 2005, it is likely
out of date.

http://www.visiontek.com/teksupport/pdf/Catalyst_control_center_guide.pdf

That is all I can dig up,
Paul

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DaveW

External


Since: Mar 09, 2007
Posts: 94



(Msg. 3) Posted: Tue Mar 27, 2007 3:50 pm
Post subject: Re: Dual TFTs with different resolutions [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

You generally have to use the SAME resolution on the two LCD's.

--

DaveW

___________
wrote in message

>I am trying to choose an AGP graphics card to support two TFTs:
> 1680x1050 and 1280x1024 under XP (Pro). It doesn't need to be terribly
> fast (no games - but a needs to cope with still-photo editing and
> Coreldraw)
>
> Can anyone help me understand:
>
> - Am I safe to assume that any card that supports 1900x1200 will
> definitely also support lesser sizes (like 1680 x 1050)? Some
> manufacturer websites list perhaps a dozen specific resolutions
> supported, others mention maximum resolution only.
>
> - Will any card that specifies that it will support two monitors work
> properly with a simple DVI splitter cable? Some cards do have two DVI
> sockets, but most of the cards seem to have one DVI and one 15-pin VGA
> - and it seems daft to degrade to analogue for the connection to a
> second DVI display.
>
> - How do I check which cards will support two screens at different
> resolutions? - I've read some cards described as only supporting two
> screens if they run at the same resolution.
>
> John Geddes
> England
>
 >> Stay informed about: Dual TFTs with different resolutions 
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SoCalCommie

External


Since: Mar 27, 2007
Posts: 10



(Msg. 4) Posted: Tue Mar 27, 2007 9:08 pm
Post subject: Re: Dual TFTs with different resolutions [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

Depends on the card and the drivers. I have a 7900GT running in 'Dual-View'
using 93.71 drivers - not recommended by nVidia for MCE BTW - that drives a
37" 1920 x 1080 display and a 22" 1680 x 1050 both at their native
resolutions. Works... but with some quirks Smile

As far as running non-standard resolutions - ie: 1680 x 1050 or 1440 x 900
(16:10 aspect ratio) - some cards natively support them and some don't. My
7900GT supports 1680 but not 1440 (although one could create a custom
'timing' setup using nVidia's control panel applet). Best to research before
you buy.

SoCalCommie

"Behind every great fortune is a crime." - Honore de Balzac

"DaveW" wrote in message

> You generally have to use the SAME resolution on the two LCD's.
>
> --
>
> DaveW
>
> ___________
> wrote in message
>
> >I am trying to choose an AGP graphics card to support two TFTs:
> > 1680x1050 and 1280x1024 under XP (Pro). It doesn't need to be terribly
> > fast (no games - but a needs to cope with still-photo editing and
> > Coreldraw)
> >
> > Can anyone help me understand:
> >
> > - Am I safe to assume that any card that supports 1900x1200 will
> > definitely also support lesser sizes (like 1680 x 1050)? Some
> > manufacturer websites list perhaps a dozen specific resolutions
> > supported, others mention maximum resolution only.
> >
> > - Will any card that specifies that it will support two monitors work
> > properly with a simple DVI splitter cable? Some cards do have two DVI
> > sockets, but most of the cards seem to have one DVI and one 15-pin VGA
> > - and it seems daft to degrade to analogue for the connection to a
> > second DVI display.
> >
> > - How do I check which cards will support two screens at different
> > resolutions? - I've read some cards described as only supporting two
> > screens if they run at the same resolution.
> >
> > John Geddes
> > England
> >
>
>
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