diff -up linux-2.6.33.noarch/drivers/platform/x86/thinkpad_acpi.c.mjg linux-2.6.33.noarch/drivers/platform/x86/thinkpad_acpi.c
--- linux-2.6.33.noarch/drivers/platform/x86/thinkpad_acpi.c.mjg	2010-04-21 10:05:14.125030722 -0400
+++ linux-2.6.33.noarch/drivers/platform/x86/thinkpad_acpi.c	2010-04-21 10:05:17.732030163 -0400
@@ -506,6 +506,7 @@ TPACPI_HANDLE(ec, root, "\\_SB.PCI0.ISA.
 	   "\\_SB.PCI0.ISA.EC",	/* A21e, A2xm/p, T20-22, X20-21 */
 	   "\\_SB.PCI0.AD4S.EC0",	/* i1400, R30 */
 	   "\\_SB.PCI0.ICH3.EC0",	/* R31 */
+	   "\\_SB.PCI0.LPC0.EC",	/* X100e */
 	   "\\_SB.PCI0.LPC.EC",	/* all others */
 	   );