It turns out that this problem was caused by someone or something modifying my copy of /usr/share/X11/xkb/rules/evdev. Reinstalling the xkb-data package fixed it. Sorry for the noise.
** Changed in: xkeyboard-config (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1245898 Title: xkbcomp error: Can't find file "extras/us" for symbols include To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xkeyboard-config/+bug/1245898/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs