echo $DISPLAY
:0
ssh localhost
xmodmap: unable to open display ''
xmodmap: unable to open display ''
xterm
xterm: Xt error: Can't open display:
xterm: DISPLAY is not set
>
> echo $DISPLAY
>
> and did you su - or sudo and/or ssh to someplace (even the local
> machines) without a -X or -Y ?
>
> if you want to verify it is a display setting/permission problem and
> not a gnome specific issue try "xterm" and see if it also says cannot
> open display and/or connection refused.
>
> On Mon, Aug 31, 2020 at 9:54 AM Patrick Dupre <pdupre(a)gmx.com> wrote:
> >
> > Hello,
> >
> > When I lauch gnome-terminal, I get
> >
> > Maximum number of clients reachedUnable to init server: Could not connect:
Connection refused
> >
> > # Failed to parse arguments: Cannot open display:
> >
> > Why that?
> >
> > ===========================================================================
> > Patrick DUPRÉ | | email: pdupre(a)gmx.com
> > Laboratoire interdisciplinaire Carnot de Bourgogne
> > 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
> > Tel: +33 (0)380395988
> > ===========================================================================
> > _______________________________________________
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>