The issue there can at least be hit during upgrades, on the machine I'm currently using which is on bionic
$ LC_ALL=C eog (eog:5727): GdkPixbuf-WARNING **: 15:51:18.029: Cannot open pixbuf loader module file '/usr/lib/x86_64-linux-gnu/gdk- pixbuf-2.0/2.10.0/loaders.cache': No such file or directory Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /org/gtk/libgtk/icons/16x16/status/image-missing.png: Unrecognized image file format (gdk-pixbuf-error-quark, 3) gdk-pixbuf is being upgraded iU libgdk-pixbuf2.0-0:amd64 2.36.11-2 amd64 GDK Pixbuf library ** Summary changed: - Crash due to assertion failure in ensure_surface_for_gicon [gtkiconhelper.c:493] + Crash due to assertion failure in ensure_surface_for_gicon [gtkiconhelper.c:493] (when png loader is missing/during upgrades) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to gtk+3.0 in Ubuntu. https://bugs.launchpad.net/bugs/1627564 Title: Crash due to assertion failure in ensure_surface_for_gicon [gtkiconhelper.c:493] (when png loader is missing/during upgrades) Status in gtk+3.0 package in Ubuntu: Confirmed Bug description: bubble opened up indicating there was a failure during the latest update. ProblemType: Crash DistroRelease: Ubuntu 16.10 Package: lightdm-gtk-greeter 2.0.1-2ubuntu4 ProcVersionSignature: Ubuntu 4.8.0-16.17-generic 4.8.0-rc7 Uname: Linux 4.4.0-9136-generic i686 ApportVersion: 2.20.3-0ubuntu7 Architecture: i386 Date: Sun Sep 25 20:37:06 2016 ExecutablePath: /usr/sbin/lightdm-gtk-greeter InstallationDate: Installed on 2016-08-04 (52 days ago) InstallationMedia: Lubuntu 16.10 "Yakkety Yak" - Alpha i386 (20160727) ProcCmdline: /usr/sbin/lightdm-gtk-greeter ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/false Signal: 6 SourcePackage: lightdm-gtk-greeter UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: modified.conffile..etc.lightdm.lightdm-gtk-greeter.conf: [greeter] theme-name = Lubuntu-dark-panel mtime.conffile..etc.lightdm.lightdm-gtk-greeter.conf: 2016-08-14T22:33:57.293011 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1627564/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
