bug#63555: closed (emacs 29 complains that it can't connect to the display)

[GNU bug Tracking System]

Your message dated Sat, 20 May 2023 15:58:50 +0300
with message-id <83ednbrwfp.fsf@gnu.org>
and subject line Re: bug#63555: emacs 29 complains that it can't connect to the 
display
has caused the debbugs.gnu.org bug report #63555,
regarding emacs 29 complains that it can't connect to the display
to be marked as done.

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63555: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63555
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> --- Begin Message ---
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> Subject: 
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> emacs 29 complains that it can't connect to the display
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> Date: 
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> Wed, 17 May 2023 09:51:43 -0400
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> User-agent: 
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> mu4e 1.7.12; emacs 27.1
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>
>
>
> Package: emacs
> Version: 29.0.90
>
> In previous versions of emacs, if the DISPLAY/WAYLAND_DISPLAY variable
> was not set, it would default to tty mode.  In version 29, it seems to
> assume a default value and complains that it can't connect to the
> display server unless you run it with -nw.
>
>
>
>
> --- End Message ---
> --- Begin Message ---
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> Subject: 
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> Re: bug#63555: emacs 29 complains that it can't connect to the display
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>
>
> Date: 
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> Sat, 20 May 2023 15:58:50 +0300
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>
>
> > From: Po Lu <luangruo@yahoo.com>
> > Cc: rpluim@gmail.com,  phill@thesusis.net,  63555@debbugs.gnu.org
> > Date: Sat, 20 May 2023 16:28:30 +0800
> > 
> > Eli Zaretskii <eliz@gnu.org> writes:
> > 
> > > What function(s) is/are used at that point which tells us a GUI
> > > session is impossible?
> > 
> > window-system-initialization.
> > 
> > > Can we invoke those same functions earlier during startup to realize
> > > this fact where we still can start as -nw?
> > 
> > Unfortunately not.  At least, not enough to make a change suitable for
> > the release branch.
>
> Too bad.  I added some verbiage to this effect in NEWS, and I'm
> closing this bug.
>
> (With all these disadvantages, I wonder why the PGTK build was
> considered such a useful addition to Emacs...)
>
> Btw, the Emacs user manual says WAYLAND_DISPLAY is the variable used
> by PGTK, which you seem to say is inaccurate?
>
>
> --- End Message ---