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- Newsgroups: comp.os.os2.programmer
- Path: sparky!uunet!noc.near.net!mars.caps.maine.edu!gandalf!jurlwin
- From: jurlwin@gandalf.UMCS.Maine.EDU (Jeff Urlwin)
- Subject: Re: Monochrome card in OS/2 DOS VDM work okay?
- Message-ID: <1992Dec18.181535.14698@gandalf.UMCS.Maine.EDU>
- Organization: University of Maine, Department of Computer Science
- References: <1992Dec17.043335.9041@grebyn.com> <1992Dec17.161351.11289@gandalf.UMCS.Maine.EDU> <1992Dec18.032510.29705@grebyn.com>
- Distribution: usa
- Date: Fri, 18 Dec 1992 18:15:35 GMT
- Lines: 42
-
- In article <1992Dec18.032510.29705@grebyn.com> richk@grebyn.com (Richard Krehbiel) writes:
- >In article <1992Dec17.161351.11289@gandalf.UMCS.Maine.EDU> jurlwin@gandalf.UMCS.Maine.EDU (Jeff Urlwin) writes:
- >
- >> In article <1992Dec17.043335.9041@grebyn.com> richk@grebyn.com (Richard Krehbiel) writes:
- >> >I'd like to get a monochrome (text) card and monitor, and use it for
- >> >two-screen DOS program debugging. I think this should work okay, but
- >> >I thought I'd ask first.
- >>
- >> I have no problems with this for small enough programs. When debugging
- >> larger ones, I need to run TD386, which won't run in VDM. When the app
- >> is small enough, all is OK. If you have any further questions, let
- >> me know.
- >
- >Hmmm... OS/2 wouldn't boot for me when I had the monochrome card in.
- >Maybe I had it set wrong. I'll have to try it again...
-
- Well, I can think of at least two things that may go wrong. Try the
- selective install program and add support for the secondary monitor
- (I did this during the normal install...). Second: Make sure the card
- doesn't have an interrupt conflict with anything else. Most of these cards
- come with a parallel port adapter which is usually set up as IRQ5 and IRQ7.
- (My bus mouse is setup as IRQ5 and that's the default for a secondary
- printer port...If I had both of these at IRQ5, I would imagine OS/2 would
- have trouble initializing the mouse...who knows what happens if it got
- into a loop testing for something and gets responses from both cards...)
-
- DOS doesn't use the IRQs for printers and doesn't care, but I'd be careful
- under OS/2 and other more sophisticated, multitasking OSs (Unix, NT, for
- example).
-
- There should be an option on the card to disable the extra stuff. I'd
- start from there. It may not be an option, though, if you can't find
- the documentation for it.
-
- Good luck,
-
- Jeff
-
- --
- --------------------------------------
- jurlwin@gandalf.umcs.maine.edu
-
-