Public bug reported: It happened once, thought I'd report it. This is what showed up in the terminal (I used the command "gnome-screenshot --interactive")
*** BUG *** In pixman_region32_init_rect: Invalid rectangle passed Set a breakpoint on '_pixman_log_error' to debug (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:44.438</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.438</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.438</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:44.470</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.470</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.470</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:44.667</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.667</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:44.667</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.512</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.512</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.512</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.536</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.536</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.537</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.552</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.552</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.553</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.568</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.568</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.568</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.583</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.583</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.583</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.600</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.600</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.600</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.616</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.616</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.616</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.634</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.634</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.634</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.654</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.654</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.654</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.670</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.670</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.670</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.685</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.685</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.685</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:47.700</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.700</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:47.700</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed (gnome-screenshot:45182): Gtk-<font color="#C4A000"><b>WARNING</b></font> **: <font color="#3465A4">20:44:53.247</font>: Drawing a gadget with negative dimensions. Did you forget to allocate a size? (node border owner GtkAspectFrame) (gnome-screenshot:45182): Gdk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:53.247</font>: gdk_cairo_surface_create_from_pixbuf: assertion 'GDK_IS_PIXBUF (pixbuf)' failed (gnome-screenshot:45182): Gtk-<font color="#75507B"><b>CRITICAL</b></font> **: <font color="#3465A4">20:44:53.247</font>: gtk_css_style_render_icon_surface: assertion 'surface != NULL' failed ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-screenshot 3.36.0-1ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-91.102-generic 5.4.151 Uname: Linux 5.4.0-91-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Dec 13 20:46:55 2021 InstallationDate: Installed on 2018-06-18 (1273 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) SourcePackage: gnome-screenshot UpgradeStatus: Upgraded to focal on 2020-10-12 (427 days ago) ** Affects: gnome-screenshot (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1954675 Title: gnome-screenshot produced a blank white image To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screenshot/+bug/1954675/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs