Do you have flow control (Xon/Xoff) enabled both on the terminal and on the VAX?
You might try a slower speed to see if that makes a difference. It shouldn't,
but it might give more information.
Is autobaud enabled on the line? You might turn that off and set the speed and
related parameters explicitly.
paul
> On Dec 5, 2017, at 12:56 PM, Peter Allan <petermal...@gmail.com> wrote:
>
> I am trying to get a real VT420 terminal working with a simulated micro VAX
> 3900. However, I am having problems getting text displayed on the screen of
> the VT420.
> ...
> Once the microVAX has booted, if I hit Enter on the VT420, then I can see
> that a login process starts on the simulated microVAX, but all I see on the
> screen of the VT420 is a few garbage characters. Despite that, when I type a
> username and a password, I do get logged into the simulated microVAX. Any
> commands that I type on the keyboard of the VT420 appears on the screen of
> the VT420 (except the password, of course), but anything that the microVAX is
> sending to the VT420 appears as garbage. There are recognisable characters,
> but if I TYPE a file, even a small one, what appears seems to be every 7th
> character from the file starting with the first character. The output of
> commands such as DIR appear to have the same problem. ...
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