Jocelyn Paine <popx@ermine.ox.ac.uk> writes:
> Date: Wed, 7 May 1997 11:15:42 +0100
> Organization: Oxford University
>
> I've been having problems running VED on our Dec Alpha on the so-called
> VT100-compatible terminal emulators.
Could you say more precisely what you are using?
We have Poplog V15.5 running on our DEC Alphastations and DEC Alpha
servers. It is used both by students and others at an Alpha
workstation, running either Xved, or VED in an Xterm window.
(We don't use the DEC window manager by default, instead everyone
gets twm by default so that they have the same interface whether
they log in on a Sun, a Dec alpha, an X terminal connected to a sun
or an Alpha, or a PC running X).
There was a problem in Poplog V15.01 on the alphas, to do with
compilation errors not being handled properly in VED, but that was
fixed in V15.5, and it doesn't sound like your problem.
> I sometimes find that although, when
> it's first started up, the display is fine, scrolling gets the screen
> image out of sync with the buffer.
This could be due to the the VT100 emulation on your terminal being
buggy.
It could be due the problems with line wrap (fix that by either
turning off line wrap in the VT100 emulation, or add an extra column
to the window, or reduce vedscreenwidth by 1. (It should normally be
1 less than the actual screen width. Try making it 2 less.) The
symptom for this is the problem occurring only when there is a long
line at the bottom of the window.
> I wonder whether this bug
> persists, and is now upsetting our emulators. Has anyone else experienced
> similar difficulties?
If you are running VT100 emulators under X, why not ditch them and
use xterm windows instead. If you are using a PC you should be able
to use X, and then students can use graphics also. (I have X menu
panels that make it much easier for people to start off on VED even
without Xved).
Even Macs can run X.... Maybe the problem is the cost of the X
software?
Aaron
--
Aaron Sloman, ( http://www.cs.bham.ac.uk/~axs )
School of Computer Science, The University of Birmingham, B15 2TT, UK
EMAIL A. Sloman @ cs. bham.ac uk(||| MAKE BULK EMAIL ADVERTS ILLEGAL |||)
Phone: +44-121-414-4775 (Sec 3711) Fax: +44-121-414-4281
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