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" <[email protected]> To: "Natalia Costas Lago" <[email protected]>; "Derek Piper" <[email protected]>; "Todd Zimmerman" <[email protected]> Cc: "'ag-tech'" <[email protected]>; "Westgrid-AGTECH" <[email protected]> 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" <[email protected]> > >> To: "Derek Piper" <[email protected]>; "Todd Zimmerman" > >> <[email protected]> > >> Cc: "'ag-tech'" <[email protected]>; "Westgrid-AGTECH" > >> <[email protected]> > >> 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 - [email protected] - (812) 856 0111 > >> > >> IRI 323, School of Informatics > >> > >> Indiana University, Bloomington, Indiana > >> > > >> > > >
