Hello Adrian,
not sure what happened, but something changed the last few days, maybe
due to an update.
(Latest update was small: libpgm-5.2-0 libwxbase3.0-0v5 libwxgtk3.0-0v5
libzmq5 orage. I'm not sure if I had more updates in the meantime)
I've had the described bug, but now I get the same error messages as you
without crashing X on display :0.
Before sending this bug report, I did further tests in virtualbox. The
bug still persists in VirtualBox with guest additions installed. It is
gone in virtualbox _without_ guest additions, and it does not happen on
my host machine anymore.
> You are basically trying to shoot yourself into the foot and you are
> surprised that you get hit.
:) Nice said. Those command has been possible in debian jessie, stretch
behaves different. For example, in jessie I can use vt8...vt12, but not
in stretch. But that is another story ...
Not sure if this is related:
Now, if running several X servers on tty1...tty6 with
xinit xterm -- :1 vt1
...
xinit xterm -- :6 vt6
my desktop session (xfce) on display :0 returns to lightdm login after
some switching between ttys.
Thanks,
Martin