dbl@h.cs.wvu.wvnet.edu (David Lawson,,2933607,5999662) (03/15/91)
HELP!!!! My parallel port WILL NOT work under OS/2 (any verison I have tried) I installed the correct printer driver and DOS/BIOS like the port fine. Also, the port is on one of these all-encompassing-cards, i.e., 2 serial, game, clock, and parallel. The serial ports work fine, so does the clock, but not the LPT1:. I am considering getting a parallel port on a card and trying that, any suggestions??? Thanks in advance. dave Lawson
rommel@Informatik.TU-Muenchen.DE (Kai-Uwe Rommel) (03/15/91)
In article <1334@h.cs.wvu.wvnet.edu> dbl@h.cs.wvu.wvnet.edu (David Lawson,,2933607,5999662) writes: >My parallel port WILL NOT work under OS/2 (any verison I have tried) >I installed the correct printer driver and DOS/BIOS like the port fine. >Also, the port is on one of these all-encompassing-cards, i.e., >2 serial, game, clock, and parallel. The serial ports work fine, >so does the clock, but not the LPT1:. I am considering getting a parallel >port on a card and trying that, any suggestions??? Thanks in advance. I have noticed that some Hercules card clones (MDA cards) are incompatible with OS/2, but not all. Have you tried only printing through PM applications until now or have you also tried something like "COPY <file> LPT1" ? Only if this doesn't work, your port is incompatible to OS/2. Kai Uwe Rommel
archer@stlvm2.vnet.ibm.com ("Gary D. Archer") (03/16/91)
Ref: Append to OS2-MISC USENET (ARCHER) at 12:29:46 on 91/03/15
OPTIONS: NOACK LOG LONG NOTEBOOK ALL
Date: 15 March 91, 08:55:37 PST
From: Gary D. Archer 8-284-6387 ARCHER at STLVM2
Sr. Planner DF Products- San Jose Programming Lab
SSPD M74/098-A40 8-294-6387
San Jose, CA
** IBM Confidential **
To: USENET at ALMADEN
Re: Parallel Port in OS/2 1.2 or 1.3
Ref: Your append to OS2-MISC USENET (ARCHER) at 12:29:46 on 91/03/15
Your parallel port needs to support IRQ7. Some clone ports are shipped
with the IRQ disabled. OS/2 needs the interrupt to allow the SPOOLER
to work. I had this problem with my serial/parallial/IDE combo card, in
that I'd get LPT1 failures until I enabled the IRQ.
Gary
---------------------------- Append follows -----------------------------
Subject: Re: Parallel Port in OS/2 1.2 or 1.3
From: rommel@Informatik.TU-Muenchen.DE (Kai-Uwe Rommel)
Message-ID: <1991Mar15.074142.17733@Informatik.TU-Muenchen.DE>
Date: 15 Mar 91 07:41:42 GMT
References: <1334@h.cs.wvu.wvnet.edu>
In article <1334@h.cs.wvu.wvnet.edu> dbl@h.cs.wvu.wvnet.edu (David Lawson,,2933607,5999662) writes:
>My parallel port WILL NOT work under OS/2 (any verison I have tried)
>I installed the correct printer driver and DOS/BIOS like the port fine.
>Also, the port is on one of these all-encompassing-cards, i.e.,
>2 serial, game, clock, and parallel. The serial ports work fine,
>so does the clock, but not the LPT1:. I am considering getting a parallel
>port on a card and trying that, any suggestions??? Thanks in advance.
I have noticed that some Hercules card clones (MDA cards) are
incompatible with OS/2, but not all. Have you tried only printing
through PM applications until now or have you also tried something like
"COPY <file> LPT1" ? Only if this doesn't work, your port is
incompatible to OS/2.
Kai Uwe Rommelgah@hood.hood.caltech.edu (Glen Herrmannsfeldt) (03/16/91)
dbl@h.cs.wvu.wvnet.edu (David Lawson,,2933607,5999662) writes: >HELP!!!! >My parallel port WILL NOT work under OS/2 (any verison I have tried) >I installed the correct printer driver and DOS/BIOS like the port fine. >Also, the port is on one of these all-encompassing-cards, i.e., >2 serial, game, clock, and parallel. The serial ports work fine, >so does the clock, but not the LPT1:. I am considering getting a parallel >port on a card and trying that, any suggestions??? Thanks in advance. >dave Lawson I believe that OS/2, unlike DOS, runs the parallel (and serial) port interrupt driven. If the port does not have an interrupt line connected, then it will probably work with DOS and not OS/2. Now, it really should, because the IBM PC, which it should be compatible with, does. Then again, it may be jumper selected.
ballard@cheddar.ucs.ubc.ca (Alan Ballard) (03/17/91)
In article <gah.669092867@hood> gah@hood.hood.caltech.edu (Glen Herrmannsfeldt) writes: >... If the port does not have an interrupt line >connected, then it will probably work with DOS and not OS/2. >Now, it really should, because the IBM PC, which it should be >compatible with, does. Then again, it may be jumper selected. The earliest PC's had a design flaw in the interrupt design of the parallel port, such that it didn't work reliably. I think this was corrected around the time of the AT, but some clone manufacturers may have continued to the original spec's. Don't remember any details, but I think it had to do with working with level-triggered interrupts (as used in DOS, when it uses interrupts at all), but not working with edge-triggered, used by OS/2. Alan Ballard | Internet: ballard@ucs.ubc.ca University Computing Services | Bitnet: USERAB1@UBCMTSG University of British Columbia | Phone: 604-228-3074 Vancouver B.C. Canada V6R 1W5 | Fax: 604-228-5116
sshoe@ucunix.san.uc.edu (Steven S. Shoemaker) (03/18/91)
In article <1334@h.cs.wvu.wvnet.edu> dbl@h.cs.wvu.wvnet.edu (David Lawson,,2933607,5999662) writes: >HELP!!!! > >My parallel port WILL NOT work under OS/2 (any verison I have tried) >I installed the correct printer driver and DOS/BIOS like the port fine. >Also, the port is on one of these all-encompassing-cards, i.e., >2 serial, game, clock, and parallel. The serial ports work fine, >so does the clock, but not the LPT1:. I am considering getting a parallel >port on a card and trying that, any suggestions??? Thanks in advance. > >dave Lawson In OS/2, parallel ports are interrupt driven. DOS, on the other hand, polls the port(s). Therefore, to use parallel ports with OS/2, your hardware must correctly implement hardware interrupts. Many clone parallel port boards do not, since DOS did/does not need interrupts. Maybe you're lucky, and you just need to add/change a jumper to enable parallel port interrupts. Hope this helps.
tankus@hsi86.hsi.com (Ed Tankus) (03/18/91)
Try setting the interrupt for LPT2 from IRQ7 to IRQ5. This is what I
had to do to get LPT2 to work on an Everex Magic I/O card.
--
"For every word, there is a song upon which inspiration lies ...".
Ed Tankus. {uunet,yale}!hsi!tankus -- OR -- tankus@hsi.com