Eu experimentei o mesmo problema. Depois de muitos esforços dolorosos, resolvi o problema na minha caixa.
As etapas abaixo corrigiram o problema na minha máquina:
* press ctrl+alt+f1 and login as root in the tty1
* cd /usr/lib/*arch-name*/gdk-pixbuf-2.0/
* find *some-version-number*/loaders/ > ~/pixbuf-files
*(not the pkg-version,try ls cmd,only one dir would list out)*
* vim ~/pixbuf-files and delete 1st line
* cat ~/pixbuf-files | xargs -n1 gdk-pixbuf-query-loaders > *the-version-number-in-step-3*/loaders.cache
* reboot
no meu caso:
* press ctrl+alt+f1 and login as root in the tty1
* cd /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/
* find 2.10.0/loaders/ > ~/pixbuf-files
* vim ~/pixbuf-files and delete 1st line
* cat ~/pixbuf-files | xargs -n1 gdk-pixbuf-query-loaders > 2.10.0/loaders.cache
* reboot