The problem seems to come from 20_migrate_background_uri.patch, which adds an URI check of the value of 'picture-uri'.
** Patch added: "20_migrate_background_uri.patch" https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/954590/+attachment/2866650/+files/20_migrate_background_uri.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/954590 Title: GLib-CRITICAL warning when setting a solid color as background To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/954590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs