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From: Alan Mackenzie <acm@muc.de>
To: Eli Zaretskii <eliz@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: What's happened to M-<tab> `completion-at-point'?
Date: Wed, 4 May 2022 18:13:30 +0000	[thread overview]
Message-ID: <YnLCSqzNFCzAQOsC@ACM> (raw)
In-Reply-To: <83sfpp2qvy.fsf@gnu.org>

Hello, Eli.

On Wed, May 04, 2022 at 19:40:01 +0300, Eli Zaretskii wrote:
> > Date: Wed, 4 May 2022 16:34:38 +0000
> > Cc: emacs-devel@gnu.org
> > From: Alan Mackenzie <acm@muc.de>

> > > > Suddenly, my M-<tab> `completion-at-point' isn't working.  Would
> > > > somebody please explain?

> > > If you press "ESC TAB" instead, what does Emacs do then?

> > I get the message

> >     [backtab] is undefined

> And what does "C-h l" show after that?

If I first press ESC TAB and C-h l, followed by C-M-i and C-h l, I get
this:

 ESC TAB ;; nil
 C-h l   ;; view-lossage
 ESC TAB ;; nil
 C-h l   ;; view-lossage

..

I think I've found the problem.  A new version of ncurses was
installed on my machine on 2022-05-01.  It contains a version of
terminfo, specifically /etc/terminfo/l/linux.

The new version is ncurses-6.3_p20211106.  The old version was
ncurses-6.2_p20210619.

So, possibly we need to amend Emacs (? src/term.c) to work properly on
this version of the Linux console.  I don't think this affects any other
type of terminal.  In particular, Emacs works OK for me under XFCE4 on X.

I think I'll be raising a bug report for this.

-- 
Alan Mackenzie (Nuremberg, Germany).



  reply	other threads:[~2022-05-04 18:13 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-03 21:06 What's happened to M-<tab> `completion-at-point'? Alan Mackenzie
2022-05-04  6:32 ` Eli Zaretskii
2022-05-04 16:34   ` Alan Mackenzie
2022-05-04 16:40     ` Eli Zaretskii
2022-05-04 18:13       ` Alan Mackenzie [this message]
2022-05-04 18:55         ` Eli Zaretskii
2022-05-04 19:10           ` Alan Mackenzie
2022-05-04 19:47             ` Yuri Khan
2022-05-04 20:16               ` Stefan Monnier
2022-05-04 20:31                 ` Yuri Khan
2022-05-04 20:50                   ` Stefan Monnier
2022-05-04 21:07                   ` Alan Mackenzie
2022-05-05  5:03                     ` tomas
2022-05-05  6:20                     ` Eli Zaretskii
2022-05-05 16:57                       ` Alan Mackenzie
2022-05-05 17:28                         ` Eli Zaretskii
2022-05-06 23:19                           ` Richard Stallman
2022-05-07 11:03                             ` Alan Mackenzie
2022-05-08 23:35                               ` Richard Stallman
2022-05-04 20:35               ` Alan Mackenzie
2022-05-04 19:16           ` Tassilo Horn
2022-05-04 19:39             ` Eli Zaretskii
2022-05-04 19:45               ` Tassilo Horn
2022-05-04 19:57               ` Andreas Schwab
2022-05-04  6:33 ` Lars Ingebrigtsen
2022-05-04 16:26   ` Alan Mackenzie

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