[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: "spurious scrolling bug"
From: |
Richard Stallman |
Subject: |
Re: "spurious scrolling bug" |
Date: |
Fri, 13 Apr 2007 17:43:10 -0400 |
I think someone sent a bug report about spurious scrolling (when
scrolling should not occur), during the past few weeks. I do not know
how to find that message, though. I searched my outgoing mail to
emacs-devel, and it seems I did not send a response to it there.
Maybe it was sent to emacs-pretest-bug.
>From inspecting timer-list and timer-idle-list, I see only that the
only active timer is the idle timer jit-lock-context-fontify, which
doesn't move point. Do you have stealth fontification on, or any
relevant customizations that might cause this?
I think these are all my settings that might be relevant:
(setq transient-mark-mode t)
(setq mark-even-if-inactive t)
(global-font-lock-mode 1)
(setq jit-lock-stealth-verbose t)
(setq jit-lock-defer-contextually t)
(setq scroll-conservatively 10000)
(setq garbage-collection-messages t)
It doesn't have to be a timer. It could be the code
in keyboard.c that sleeps and then does auto-save or GC.
I think I have sometimes seen this problem in recent weeks when I
type C-c C-c to send a message, and the RMAIL buffer expands to
fill the whole screen. After that, I sometimes see it scroll.