[AG-TECH] Multi Display Cards Recommendation

[Natalia Costas Lago]

I've found this _very interesting_ (it seems to me at least) webpage and 
website.

http://www.multiplemonitors.org/Pages%20-%20Hardware/Hardware%20-%20Multi%20head%20Video%20cards.html

Regards,
Natalia

----- Original Message ----- 
From: "Peter DeSantis" <peter at jumbovision.com.au>
To: "Natalia Costas Lago" <natalia at cesga.es>; "Derek Piper" 
<dcpiper at indiana.edu>; "Todd Zimmerman" <toddz at sfu.ca>
Cc: "'ag-tech'" <ag-tech at mcs.anl.gov>; "Westgrid-AGTECH" 
<westgrid-agtech-l at majordomo.netera.ca>
Sent: Friday, June 10, 2005 9:38 AM
Subject: re[4]: [AG-TECH] Multi Display Cards Recommendation


> the matrox drivers have amatrox tool to switch between multiscreen and 
> stretch mode.
>
> multiscreen = up to 4 vga screens, each screen can be set to an 
> independant resolution, and bitdepth.  This is equivalent to the 
> "standard" windows multiscreen modes.  We wanted to have screen 1= 
> 1024x768 for the control monitor, then the last 3 screens set to 
> 1280x1024.  In this mode if you maximise a window of any application it 
> maximises only to fill up the screen its located on
>
> stretch mode = up to 4 screens, each screen must be the same resolution 
> and bitdepth. You end up with 1 wide 1x4 desktop. If you maximise a window 
> in this mode it streteches and maximises across the whole 4 screens.
>
> With the PCI express matrox QID the multiscreen mode causes each vic 
> window that you open to pop up on the primary screen, then if you drag it 
> around it leaves trails and video locks up and causes screen corruption 
> all over.
>
> The multiscreen mode did not have this problem.  Last time i looked matrox 
> had not updated the driver that casued this problem, and i am pretty sure 
> its caused by the driver, not for example a hardware issue.
>
> Peter
>
>
> >>  what's the difference between strech mode and multiscreen mode??
>
> >>  ----- Original Message ----- 
> >>  From: "Peter DeSantis" <peter at jumbovision.com.au>
> >>  To: "Derek Piper" <dcpiper at indiana.edu>; "Todd Zimmerman" 
> >> <toddz at sfu.ca>
> >>  Cc: "'ag-tech'" <ag-tech at mcs.anl.gov>; "Westgrid-AGTECH"
> >>  <westgrid-agtech-l at majordomo.netera.ca>
> >>  Sent: Friday, June 10, 2005 3:49 AM
> >>  Subject: re[2]: [AG-TECH] Multi Display Cards Recommendation
>
>
> >>  > We used the new matrox PCI express variation of the (QID) matrox 
> >> card.
> >>  >
> >>  > It works fine in the horizontal stretch mode, but in the multiscreen
> >>  mode
> >>  > the vic windows corrupt the screens all over with screen courruption
> >>  > occuring as you drag windows around.  We tried to use the 
> >> multiscreen
> >>  > mode, so we could have1 screen for the control monitor at a lower 
> >> res
> >>  than
> >>  > the other 3 screens.
> >>  >
> >>  > Also the pci express driver dont support 1400x1050 which is comon in 
> >> new
> >>
> >>  > projectors today. I emailed matrox repeatedly about them upgrading 
> >> thier
> >>
> >>  > drivers to correct the problem, but all i get from them is that 
> >> "they
> >>  are
> >>  > not aware on any problems with the product".  This is what i call
> >>  > "weasonable" behavior
> >>  >
> >>  > Peter
> >>  >
> >>  >
> >>  > >>      What Matrox card did you get that you weren't happy with? We
> >>  > >> recently
> >>  > >>  got a Matrox QID card (AGP) in our node and it works great. 4 x 
> >> DVI
> >>  > >>  outputs. We have a Matrox Millenium P650 PCI to drive the 
> >> 'operators
> >>  > >>  console' TFT, so it's a 5 display machine.
> >>  >
> >>  > >>      Derek
> >>  >
> >>  > >>  Todd Zimmerman wrote:
> >>  > >>  > Hey all,
> >>  > >>  >
> >>  > >>  > I'm just writing up a suggested hardware list and am not sure 
> >> what
> >>
> >>  > >> to
> >>  > >>  > suggest for a multi-out (tri or quad) video card - especially
> >>  since
> >>  > >> the
> >>  > >>  > last experience I had with a quad out card (from Matrox) was 
> >> less
> >>  > >> than
> >>  > >>  > satisfactory.
> >>  > >>  >
> >>  > >>  > All of our display machines are G5's - so we just add a second
> >>  dual
> >>  > >>  > display card to get 4 outputs, which works well.  However, for 
> >> a
> >>  > >> Windows
> >>  > >>
> >>  > >>  > display computer, I'm not sure this would work.
> >>  > >>  >
> >>  > >>  > Any recommendations??
> >>  > >>  >
> >>  > >>  > Thanks,
> >>  > >>  >
> >>  > >>  > Todd
> >>  > >>  >
> >>  >
> >>  > >>  -- 
> >>  > >>  Derek Piper - dcpiper at indiana.edu - (812) 856 0111
> >>  > >>  IRI 323, School of Informatics
> >>  > >>  Indiana University, Bloomington, Indiana
> >>  >
> >>  >
>
>