Gimp assertion failure
(gimp:7269): GLib-GObject-WARNING **: g_object_set_is_valid_property: object class 'GeglConfig' has no property named 'cache-size'
(gimp:7269): Gimp-Widgets-CRITICAL **: gimp_device_info_set_device: assertion '(info->device == NULL && GDK_IS_DEVICE (device)) || (GDK_IS_DEVICE (info->device) && device == NULL)' failed
(print:7930): Gtk-WARNING **: Error launching preview Failed to execute child process “evince” (No such file or directory)
libGL error: unable to load driver: nouveau_dri.so
libGL error: driver pointer missing
libGL error: failed to load driver: nouveau
That assertion looks pretty hokey to me. Anyway, Gimp seems pretty unhappy.