Emacs 22.1 does not redisplay while holding down Prior key (scroll-down)

Emacs 22.1 does not redisplay while holding down Prior key (scroll-down)

[Joe Wells]

When holding down the Prior key (usually labeled “Page Up”) which is
bound to scroll-down to scroll toward the start of the buffer, no
redisplay occurs until the beginning of the buffer is reached.

In contrast, when holding down the Next key (usually labeled “Page
Down”) which is bound to scroll-up, redisplay occurs after every
movement.

I see the same problem with Emacs from CVS from 2005-02.

In Emacs 21.4, redisplay occurs after every movement with both keys,
as expected.

I hope this report is helpful.

Joe

======================================================================
In GNU Emacs 22.1.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2007-06-27 on artemis
Windowing system distributor `The X.Org Foundation', version 11.0.70000000
configured using `configure  '--prefix=/home/jbw/local2' '--enable-debug' '--disable-nls' '--with-x-toolkit=gtk' 'CFLAGS=-O0 -g3 -ggdb''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: en_US.UTF-8
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: jbw
  value of $LANG: nil
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Minor modes in effect:
  gnus-agent-mode: t
  shell-dirtrack-mode: t
  desktop-save-mode: t
  url-handler-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  temp-buffer-resize-mode: t
  size-indication-mode: t
  line-number-mode: t
  transient-mark-mode: t