barrett@jhunix.HCF.JHU.EDU (Dan Barrett) (03/27/91)
If you have any printers hooked up via LAT, then there is something you should know. According to Ultrix Software Support, you should NEVER associate your very first LAT tty with a printer: it causes unpredictable glitches. This is undocumented. You can find your "first" LAT tty by doing to /dev and typing: $ file tty* |grep 39 tty02: character special (39/0) LAT #0 terminal #0 tty03: character special (39/1) LAT #0 terminal #1 tty04: character special (39/2) LAT #0 terminal #2 tty05: character special (39/3) LAT #0 terminal #3 tty06: character special (39/4) LAT #0 terminal #4 ... In the above example, tty02 is the first LAT tty (LAT #0, terminal #0). So, you should never dedicate /dev/tty02 for a LAT printer -- always for a normal terminal. Put a note in /etc/ttys next to this tty entry, saying that it should always be used for a terminal and never a printer. I don't know anything more about the reason. In fact, when I asked the Software Support engineer, he said they had discovered this glitch "by experience". Dan //////////////////////////////////////\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ | Dan Barrett, Department of Computer Science Johns Hopkins University | | INTERNET: barrett@cs.jhu.edu | | | COMPUSERVE: >internet:barrett@cs.jhu.edu | UUCP: barrett@jhunix.UUCP | \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\/////////////////////////////////////