GNU bug report logs - #64139
28.2; Scrolling problems in miniwindow

Previous Next

Full log

View this message in rfc822 format

From: Eli Zaretskii <eliz <at> gnu.org>
To: Al Petrofsky <al <at> petrofsky.org>, Juri Linkov <juri <at> linkov.net>
Cc: 64139 <at> debbugs.gnu.org
Subject: bug#64139: 28.2; Scrolling problems in miniwindow
Date: Sun, 18 Jun 2023 10:09:05 +0300

> From: Al Petrofsky <al <at> petrofsky.org>
> Date: Sat, 17 Jun 2023 20:26:19 -0400
> 
> I'm seeing some weird scrolling bugs in the miniwindow when the
> minibuffer contains more lines than the window.  I think these
> problems exist on ttys and graphical terminals of all sizes, but for
> ease of reproducibility use an 80x24 tty.
> 
>    emacs-28.2 -Q -nw
>    M-: C-@ C-x ( C-x C-k TAB C-q C-j C-u 9 9 C-x e C-x C-x C-v
> 
> The C-v, instead of scrolling a few lines, scrolls all the way down to
> line 97.

I tried to use this recipe, but it produces weird results, and I don't
see what you describe.  Would you like to show an easier to understand
recipe, or describe what should be in the min-window as result of the
recipe?  And what exactly are your expectations from C-v/M-v in this
case?

I tried this:

  M-x C-u 99 C-q C-j M-<

after that, C-v scrolls the mini-window as expected, so that I get to
the end in 13 C-v keypresses.  Which looks reasonable to me.

> Also, if you now repeatedly M-v, the buffer will just scroll up and
> down three lines.  When I use a large X frame, repeated M-v will
> scroll up to the top of the buffer, but then glitch and cycle around
> back to the bottom.

M-v in the minibuffer is bound to switch-to-completions, so I'm unsure
what you expected here.

Adding Juri who worked on the scrolling commands in the minibuffer.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.