I have a thinkpad X40, too. The card reader used to work with edgy, but now it doesn't work anymore. So this is a regression.
-- Ricoh SD card reader does not work, loading mmc_block and inserting makes kernel go BOOM https://launchpad.net/bugs/88992 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs