lyle@ogccse.ogc.edu (Lyle Cool) (06/07/89)
I have Minix 1.3 (640K PC) running (finally) except for the printer driver. The printer works fine under DOS, but Minix doesn't seem to know that the printer is connected. Every attempt to use it results in : printer out of paper printer not on line printer error I have a Panasonic 1091 connected to the parallel port of a typical XT clone. If anyone can offer help, it would be most appreciated. Thanks, Lyle Cool
jeff@questar.QUESTAR.MN.ORG (Jeff Holmes) (06/08/89)
In article <3096@ogccse.ogc.edu> lyle@ogccse.UUCP (Lyle Cool) writes: > I have Minix 1.3 (640K PC) running (finally) except for the printer > I have a Panasonic 1091 connected to the parallel port of a typical > XT clone. If anyone can offer help, it would be most appreciated. > Lyle Cool I have the same configuration and no problems, try the cable or connections. -jeff- -- Jeff Holmes DOMAIN: jeff@questar.mn.org Questar Data Systems UUCP: amdahl!bungia!questar!jeff
pa1343@sdcc15.ucsd.edu (John J. Marco) (06/10/89)
In article <3096@ogccse.ogc.edu> lyle@ogccse.UUCP (Lyle Cool) writes: >I have Minix 1.3 (640K PC) running (finally) except for the printer >driver. The printer works fine under DOS, but Minix doesn't seem to >know that the printer is connected. Every attempt to use it results >in : >printer out of paper >printer not on line >printer error >I have a Panasonic 1091 connected to the parallel port of a typical >XT clone. If anyone can offer help, it would be most appreciated. I'll bet you have a hercules card. Why? I had this same problem also and only recently found out how to fix it. The problem is that the IO address of the p[rinter port is calculated using the type of video card that is in use. two marcos are defined for this: PR_COLOR_BASE and PR_MONO_BASE. Normally, get_chrome determines whether the current video card is color or mono (or EGA). for the color cards it reports a color adapter to minix. printer.c then uses this to set the printer IO port to PR_COLOR_BASE. For mono cards, monocrhome is reported by get_chrome() and then printer.c uses that to set the printer port to PR_MONO_BASE. Here's the catch: If get_chrome is called and the video is Hercules or compatible it will return the monochrome value. printer.c will then set the port address to PR_MONO_BASE. BUT, after testing to find out what the printer port is with a hercules card I found out that the hercules card makes the printer port address be PR_COLOR_BASE. Thus the WRONG port address is being used for the printer port and the printer doesn't work. My kludge to this problem was to define PR_MONO_BASE to be the same value as PR_COLOR_BASE. This gives the printer driver no choice but to use the color printer IO address like the Hercules card requires. I am considering putting a small routine in klib88.asm to use the BIOS to find the printer port, thus eliminating this problem altogether. I hope this helps. >Thanks, >Lyle Cool +-----------------------------------------+ | John J. Marco -- pa1343@sdcc15.ucsd.edu | | ...!uunet!sdcc15.ucsd.edu!pa1343 | +-----------------------------------------+