3 questions on weirdness

[Daniel Ray]

Hello netpeople. I'm not new to UNIX, but lately a couple of weird new
things have happened to me. The third issue is a hardware question,
please email me responses to that one.

1. Has anyone ever tried the command:

	who -uT /etc/wtmp | tail -5          (via login shell /bin/ksh)

When I use this command and only this command, the DTR signal on my modem
(/dev/ttym0 connected to a CompuTone ATvantageX dumb serial board) starts
flashing off and on in time with the disk drive seeks. The command
without the '-T' option does nothing weird. The port is mode 0622 as
is usual waiting between logins. I think the '-T' option is contradictory
to using /etc/wtmp, but I've never seen this DTR flashing. Eventually init
gets tired of it and signals that getty keeps dying and shuts the port.


2. We use several filesystem divisions for the /tmp and /usr/tmp direc-
tories, which are then mounted at startup. I've just noticed that when
a user cd's to one of these, and types 'cd ..', ksh reports a bad directory.
Also ls -lai won't find it, saying ./.. not found. If the user is root,
however, it works fine for both cd and ls. Wonder why ??


3. Last summer my EGA color monitor got an attack of the wiggles, and the
characters on the screen started to shimmer horizontally. When they quieted
down, the overscan area to the left of the leftmost column was markedly
decreased, so that now character position 1 is almost flush with the left
edge of the screen. This really distorts things too, so that vertical lines
look like mild curves. My EGA monitor has no horizontal adjust knob. Question:
is it the monitor or the EGA card? Is there an easy fix or will it require
a service call?

Thanks everybody if you have any information on this all.

dan

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