[comp.sys.dec] Black vertical line on VR299 display

janick@bcrkd13.bnr.ca (Janick Bergeron) (07/28/90)

All my xterm windows (and only my xterm windows) have a black line
next to the scroll bar. The line is one pixel wide, runs the entire
length of the window and has some random fuzz.

    +--- Elevator area
    |
    |  +-- Black fuzzy line
    |  |
    V  V
  +---+-------------------------------------------------+
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |   |:              XTERM  WINDOW                     |
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |   |:                                                |
  |XXX|:                                                |
  |XXX|:                                                |
  +---+-------------------------------------------------+

The line appears when located on 1 out of every 4 columns of the screen.
For example, 'xterm -b 1 -bw 1 -geometry +X+Y' will have the black line
in its window for X mod 4 = 0 and all values of Y. Positioning the window
on these same location through other means does not make a difference.

Anyone else has had this problem ? Knows the cause ??
Better yet: Have a solution ??

--
Janick Bergeron     Bell-Northern Research, Ltd       Ph.: (613) 763-5457
VHDL Tools            P.O. Box 3511, Station C        Fax: (613) 763-7241
                  Ottawa, Ontario, Canada, K1Y 4H7  Flame: 1-800-DEV-NULL
janick@bnr.ca                     library disclaimer; use disclaimer

jg@crl.dec.com (Jim Gettys) (07/28/90)

Sounds like your video simmm may have gone bad.  I've seen
them do that.  Try talking to your friendly field service
person.
				- Jim

hascall@cs.iastate.edu (John Hascall) (07/30/90)

In article <1990Jul27.192727.3206@bnr.ca> janick@bnr.ca writes:
}All my xterm windows (and only my xterm windows) have a black line
}next to the scroll bar. The line is one pixel wide, runs the entire
}length of the window and has some random fuzz.
}
}    +--- Elevator area
}    |
}    |  +-- Black fuzzy line
}    |  |
}    V  V
}  +---+-------------------------------------------------+
}  |   |:                                                |
}  |   |:                                                |
	     [more picture omitted!]
}  |XXX|:                                                |
}  +---+-------------------------------------------------+

      I have noticed this when I have "added" the scroll bar (elevator)
 -- it looks to me like this is the first row of pixels from the first
 row of characters -- "clear" seems to take care of it.

 John Hascall  /  john@iastate.edu