bug#8822: 23.1; Extended desktop garbles text

[Krishna Karthik]

When I connect another monitor and extend the desktop onto it text in
emacs has display problems.  The text appears to be overlapped.  Each
character also appears just before itself.  When the cursor is blinking
the character before it also blinks. This is temporarily corrected with
C-l. 

This is not reproducible if the extended monitor is removed and emacs
started again.

Thank you.


In GNU Emacs 23.1.1 (i686-pc-linux-gnu, GTK+ Version 2.22.0)
 of 2011-03-04 on roseapple, modified by Debian
Windowing system distributor `The X.Org Foundation', version
11.0.10900000
configured using `configure  '--build=i686-linux-gnu'
'--host=i686-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var/lib'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs23:/etc/emacs:/usr/local/share/emacs/23.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.1/site-lisp:/usr/share/emacs/site-lisp:/usr/share/emacs/23.1/leim'
 '--with-x=yes' '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars' 
'build_alias=i686-linux-gnu' 'host_alias=i686-linux-gnu' 'CFLAGS=-DDEBIAN -g 
-O2' 'LDFLAGS=-g' 'CPPFLAGS=''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_IN
  value of $XMODIFIERS: nil
  locale-coding-system: iso-latin-1-unix
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x r e p o <tab> r t <tab> <return>

Recent messages:
Loading /usr/share/emacs/site-lisp/haskell-mode/haskell-site-file.el
(source)...done
Loading /etc/emacs/site-start.d/50haskell-mode.el (source)...done
Loading /etc/emacs/site-start.d/50html-helper-mode.el (source)...done
Loading /etc/emacs/site-start.d/50org-mode.el (source)...done
Loading /etc/emacs/site-start.d/50psvn.el (source)...done
Loading /usr/share/emacs23/site-lisp/emacs-goodies-el/color-theme-library.el 
(source)...done
Loading 
/usr/share/emacs23/site-lisp/emacs-goodies-el/color-theme-library.elc...done
Loading /home/karthik/.emacs.d/site-lisp/themes/railscasts.el
(source)...done
For information about GNU Emacs and the GNU system, type C-h C-a.
Making completion list...