Bug#572391: libgtk2.0-0: gtk-based apps are unaware of screen resolution across monitor plug/unplug

Daniel Kahn Gillmor dkg at fifthhorseman.net
Wed Mar 3 21:57:04 UTC 2010


Package: libgtk2.0-0
Version: 2.18.6-1
Severity: normal

This might be related to #498848 (http://bugs.debian.org/498848)

I have a dual monitor setup with a 1280x1024 external VGA monitor
positioned logically "above" my 1024x600 laptop screen.  when i run
xrandr while the VGA monitor is disconnected, xrandr is aware that the
monitor is unplugged, but does not change the size of the virtual
screen.

gtk-based apps appear to make use of the connected/disconnected
information during the last run of xrandr, not based on the actual
state of currently plugged hardware.  i've tested this with both gedit
and evince.

if you think this is a bug in xrandr or somewhere else, feel free to
re-assign.

here's how to reproduce:

 0) plug in external monitor, extend desktop into that monitor.

 1) launch gedit, position on external monitor, pull down file menu.
 works fine.  dismiss file menu.

 2) unplug external monitor, run "xrandr" with no arguments

 3) plug external monitor back in.

 4) try to pull down file menu: item in menubar highlights, menu does
 not show.  gedit spews the following error message:

(gedit:3189): Gtk-WARNING **: gtk_widget_size_allocate(): attempt to allocate widget with width 245 and height -629

    (the height value (-629 here) will depend on the vertical position
    of the gedit window)

 5) "dismiss" the non-existent menu by hitting ESC.

 6) run "xrandr" with no arguments

 7) try to pull down file menu.  it works again.

Thanks for maintaining gtk in debian!

     --dkg

-- System Information:
Debian Release: squeeze/sid
  APT prefers testing
  APT policy: (500, 'testing'), (200, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.32-trunk-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libgtk2.0-0 depends on:
ii  libatk1.0-0            1.28.0-1          The ATK accessibility toolkit
ii  libc6                  2.10.2-6          Embedded GNU C Library: Shared lib
ii  libcairo2              1.8.8-2           The Cairo 2D vector graphics libra
ii  libcups2               1.4.2-4           Common UNIX Printing System(tm) - 
ii  libfontconfig1         2.8.0-2           generic font configuration library
ii  libfreetype6           2.3.11-1          FreeType 2 font engine, shared lib
ii  libglib2.0-0           2.22.4-1          The GLib library of C routines
ii  libgnutls26            2.8.5-2           the GNU TLS library - runtime libr
ii  libgssapi-krb5-2       1.8+dfsg~alpha1-7 MIT Kerberos runtime libraries - k
ii  libgtk2.0-common       2.18.6-1          Common files for the GTK+ graphica
ii  libjasper1             1.900.1-6.1       The JasPer JPEG-2000 runtime libra
ii  libjpeg62              6b-16.1           The Independent JPEG Group's JPEG 
ii  libpango1.0-0          1.26.2-1          Layout and rendering of internatio
ii  libpng12-0             1.2.42-2          PNG library - runtime
ii  libtiff4               3.9.2-3+b1        Tag Image File Format (TIFF) libra
ii  libx11-6               2:1.3.3-1         X11 client-side library
ii  libxcomposite1         1:0.4.1-1         X11 Composite extension library
ii  libxcursor1            1:1.1.10-1        X cursor management library
ii  libxdamage1            1:1.1.2-1         X11 damaged region extension libra
ii  libxext6               2:1.1.1-2         X11 miscellaneous extension librar
ii  libxfixes3             1:4.0.4-1         X11 miscellaneous 'fixes' extensio
ii  libxi6                 2:1.3-2           X11 Input extension library
ii  libxinerama1           2:1.1-2           X11 Xinerama extension library
ii  libxrandr2             2:1.3.0-3         X11 RandR extension library
ii  libxrender1            1:0.9.5-1         X Rendering Extension client libra
ii  shared-mime-info       0.71-1            FreeDesktop.org shared MIME databa
ii  zlib1g                 1:1.2.3.4.dfsg-3  compression library - runtime

Versions of packages libgtk2.0-0 recommends:
ii  hicolor-icon-theme            0.11-1     default fallback theme for FreeDes
ii  libgtk2.0-bin                 2.18.6-1   The programs for the GTK+ graphica

Versions of packages libgtk2.0-0 suggests:
ii  gvfs                          1.4.3-1    userspace virtual filesystem - ser
ii  librsvg2-common               2.26.0-1   SAX-based renderer library for SVG

-- no debconf information






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