diff -uNr a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
--- a/drivers/usb/host/uhci-hcd.c	2004-03-11 23:52:01.000000000 -0500
+++ b/drivers/usb/host/uhci-hcd.c	2004-03-13 10:38:45.000000000 -0500
@@ -2471,9 +2471,17 @@
 
 	pci_set_master(to_pci_dev(uhci_dev(uhci)));
 
-	if (uhci->state == UHCI_SUSPENDED)
+	if (uhci->state == UHCI_SUSPENDED) {
+
+               /*
+                * Some systtems clear the Interrupt Enable register during
+                * PM suspend/resume, so reinitialize it.
+                */
+               outw(USBINTR_TIMEOUT | USBINTR_RESUME | USBINTR_IOC |
+                       USBINTR_SP, uhci->io_addr + USBINTR);
+
 		uhci->resume_detect = 1;
-	else {
+	} else {
 		reset_hc(uhci);
 		start_hc(uhci);
 	}