bug#55070: 28.1; desktop-load doesn't work in -nw (non-gui) emacs

[Eli Zaretskii <eliz@gnu.org>]

> From: Juri Linkov <juri@linkov.net>
> Cc: larsi@gnus.org,  eric@swenson.org,  55070@debbugs.gnu.org
> Date: Wed, 27 Apr 2022 19:53:43 +0300
> 
> >> > Thanks, but I don't understand why you need the frameset part of the
> >> > patch.
> >>
> >> Because restoring frames on tty fails without this fix.
> >
> > Restoring frames is desktop.el's business, so it should be fixed
> > there.
> 
> The sole purpose of frameset.el is to save and restore frames.
> So the bug was fixed in frameset.el.

If you want to teach frameset.el to deal with TTY frames, the patch
should explicitly test for TTY frames _inside_ frameset.el.  The way
you proposed to fix it will do the same on GUI frames, where this
situation _should_ signal an error.

> > Why does "emacs -nw" at all save frame coordinates if they
> > cannot be restored?
> 
> "emacs -nw" doesn't save frame coordinates.

Then the fix you proposed cannot help the OP, AFAIU, because his use
case was to always use -nw sessions.

> > I hope we can find a more elegant and explicit solution to this issue.
> 
> I provided the patch to fix this bug.
> If you know how to fix it better, this would be fine.

I suggested a way to fix it.  I'm not saying my suggestion is the only
possible solution, but it's IMO better than what you proposed in at
least one aspect.