GNU bug report logs - #42653
28.0.50; scroll-margin is sometimes ignored with hl-line/display-line-numbers-mode

Previous Next

Full log

Message #32 received at 42653 <at> debbugs.gnu.org (full text, mbox):

From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: Dale Sedivec <dale <at> codefu.org>
Cc: 42653 <at> debbugs.gnu.org
Subject: Re: bug#42653: Emacs now recentering very aggressively
Date: Fri, 11 Sep 2020 12:29:04 +0200

Dale Sedivec <dale <at> codefu.org> writes:

> 2. Display anything in the header line: (setq-default header-line-format "foo"
[...]

> Expected behavior: Point is sitting at the bottom line of the window
> no matter how many times you page up
>
> Observed behavior: The window is recentered, usually after ever page
> up, with a slight delay

Ah!  So that's what this is.  I spent some time the other day tracking
down why this was happening in erc buffers, so I was looking at recent
erc changes.  But erc is one of the few modes I have with a header line
that I sometimes scroll back in, so that explains it.

> I can stop this from happening with (setq scroll-conservatively 101),
> so perhaps the behavior is intentional?  However, the fact that point
> stays at the bottom of the window for a brief instant, and then only
> recenters when (I am **guessing**) which-func-update runs leads me to
> believe this is unintentional behavior.

Yes, it's definitely unintentional.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

Previous Next

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