[Info-vax] [XDM] Can't open display

[Matthew R. Wilson]

On 2023-01-11, JKB <JKB at hilbert.invalid> wrote:
> 	Hello,
>
> 	I have posted here few days ago a question about xdm. I have
> 	reinstall DECW$ from scratch on OpenVMS 7.3 (VAX).
>
> 	On a Unix workstation, I launch
> 	Xephyr -query fermat :1

Don't take this as definitive... but I remember seeing in the past that
the XDM on OpenVMS 7.3 has trouble with anything but display 0. Since
you're running Xephy as display 1, I don't know that it will ever work.

Additionally, if you're using Xephyr, you're probably using too new a
version of X on the Linux/Unix side. To get anything working with X on
my VMS 7.3 system, I needed to install backrev versions of Linux distros
in a VM to get an old enough version of X11 that worked with the old VMS
version. Maybe start by trying something of the RHEL 6 or 7 era (which
I think would have Xnest, not Xephyr).

-Matthew