@Thomas /etc/X11/xorg.conf only exists during installation, not afterwards on installed system. So I think that's an additional issue. @Georgios Could you copy all the snippets (apart from 50-device.conf) from /etc/X11/xorg.conf.d (if these exist) or /usr/share/X11/xorg.conf.d/ (if the formers don't exist) to /run/X11/xorg.conf.d where 10-card.conf is? Does this work then?