May be similar to bug #40116 - a well-known problem with the Thinkpad 600E, which also has this sound card. In this case it always incorrectly detects it as a cd4610.
-- Crystal soundcard CS4236 module not loaded on startup https://launchpad.net/bugs/51965 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
