Post by thread:[EE]: snapshot video or slower update

I stumbled upon the Matrox DualHead2Go and I started thinking: http://www.matrox.com/graphics/offhome/dh2go/home.cfm Would an FPGA support taking snapshots of XVGA video passing though it and put it on another screen ? Thus one could have a number of monitors that worked from one video card and could show different video images. This might be great for laptops that often cannot have expanded video capabilities. AGSC

On Fri, 2006-01-06 at 10:54 -0700, Gus Salavatore Calabrese wrote: > I stumbled upon the Matrox DualHead2Go and I started thinking: > www.matrox.com/graphics/offhome/dh2go/home.cfm > > Would an FPGA support taking snapshots of XVGA video passing > though it and put it on another screen ? Thus one could have a number > of monitors that worked from one video card and could show different > video images. > > This might be great for laptops that often cannot have expanded video > capabilities. It's an interesting idea, but there are "USB video cards" out there. They plug into your USB port, enumerate as a regular video card, and have VGA output. Very simply way of adding duel head to any system. Being only USB2 the screen updates are NOT as fast as a real video card, but for something like a datasheet or email it's supposedly more then enough. TTYL ----------------------------- Herbert's PIC Stuff: http://repatch.dyndns.org:8383/pic_stuff/

On 1/6/06, Herbert Graf <spam_OUTmailinglist2TakeThisOuTfarcite.net> wrote: > On Fri, 2006-01-06 at 10:54 -0700, Gus Salavatore Calabrese wrote: > > I stumbled upon the Matrox DualHead2Go and I started thinking: > > www.matrox.com/graphics/offhome/dh2go/home.cfm > > > > Would an FPGA support taking snapshots of XVGA video passing > > though it and put it on another screen ? Thus one could have a number > > of monitors that worked from one video card and could show different > > video images. True you could do that, but how would you trigger the snapshot? Perhaps you could do it if you could control a few pixels in one corner of the screen I suppose (in pc-side software).. Would make a nice toy, but would have serious framerate issues in all likelihood. --andrew