instone@bgsuvax.UUCP (Keith Instone) (12/06/89)
I want to have two monitors (and 2 video cards) hooked up to a Mac II, both displaying the SAME SCREEN. The monitors control panel device lets you position the screens any way you want next to each other, but not "on top" of each other. I need to use 2 separate video cards because one is spitting out NTSC, the other RGB. Any suggestions? I am already using the "video hack", so another hack would be OK. Keith Instone ...!osu-cis!bgsuvax!instone instone@andy.bgsu.edu Department of Computer Science Bowling Green State University Happiness is being a grandparent.
jg2f+@andrew.cmu.edu (Jude Anand George) (12/06/89)
instone@bgsuvax.UUCP (Keith Instone) writes: > I want to have two monitors (and 2 video cards) hooked up to a Mac II, > both displaying the SAME SCREEN. The monitors control panel > device lets you position the screens any way you want next to each > other, but not "on top" of each other. I need to use 2 separate > video cards because one is spitting out NTSC, the other RGB. > > Any suggestions? I am already using the "video hack", so another > hack would be OK. Fire up ResEdit, go into your System file and set the values in the 'scrn' ID=0 resource so that both monitors map onto the same global screen area. Caveat: I believe the mouse cursor will only appear on one of the screens. / ::::UUCP:::: the_known_world!harvard!andrew.cmu.edu!jg2f+ %\/ Jude Anand George :::BITNET::: jg2f+@ANDREW | jg2f+%andrew@{CMCCVB|CMCCVMA} \/\ Andean judge ogre ::Internet:: jg2f+@andrew.cmu.edu \ :Compuserve: >INET:jg2f+@andrew.cmu.edu
russotto@eng.umd.edu (Matthew T. Russotto) (12/07/89)
In article <5243@bgsuvax.UUCP> instone@bgsuvax.UUCP (Keith Instone) writes: > >I want to have two monitors (and 2 video cards) hooked up to a Mac II, >both displaying the SAME SCREEN. The monitors control panel >device lets you position the screens any way you want next to each >other, but not "on top" of each other. I need to use 2 separate >video cards because one is spitting out NTSC, the other RGB. > >Any suggestions? I am already using the "video hack", so another >hack would be OK. > > Ugh. Sounds tricky. My best advice would be to get the system to forget about using the card for real work, and to copy the screen every vertical blanking interval. (No, I don't know of any software to do that) But that seems like it will SLLOOOWWW the system down. Wouldn't it be easier to get a Y-cable and a hardware RS-170 to NTSC converter? -- Matthew T. Russotto russotto@eng.umd.edu russotto@wam.umd.edu ][, ][+, ///, ///+, //e, //c, IIGS, //c+ --- Any questions?