@sLumPia fbdev-driver you have is not compiled for Xorg 1.14, try pacman -Syu and if there is no updated version, you need to pass -ignoreABI to Xorg, chances are it may even work.
error: failed to commit transaction (conflicting files) filesystem: /bin exist in filesystem filesystem: /sbin exist in filesystem filesystem: /usr/sbin exist in filesystem Errors occured, no packages were upgraded.