Index: cackey.c
==================================================================
--- cackey.c
+++ cackey.c
@@ -3109,11 +3109,13 @@
 
 			scard_listreaders_ret = SCardListReaders(*cackey_pcsc_handle, NULL, pcsc_readers, &pcsc_readers_len);
 			if (scard_listreaders_ret == SCARD_S_SUCCESS) {
 				pcsc_readers_e = pcsc_readers + pcsc_readers_len;
 
-				currslot = 0;
+				/* Start with Slot ID 1, to avoid a bug in GDM */
+				/* Bug 619297: https://bugzilla.gnome.org/show_bug.cgi?id=619297 */
+				currslot = 1;
 				while (pcsc_readers < pcsc_readers_e) {
 					curr_reader_len = strlen(pcsc_readers);
 
 					if ((pcsc_readers + curr_reader_len) > pcsc_readers_e) {
 						break;
@@ -3144,12 +3146,16 @@
 					currslot++;
 
 					pcsc_readers += curr_reader_len + 1;
 				}
 
-				if (currslot > 0) {
-					slot_count = currslot;
+				/* Start with Slot ID 1, to avoid a bug in GDM */
+				/* Bug 619297: https://bugzilla.gnome.org/show_bug.cgi?id=619297 */
+				if (currslot > 1) {
+					/* Start with Slot ID 1, to avoid a bug in GDM */
+					/* Bug 619297: https://bugzilla.gnome.org/show_bug.cgi?id=619297 */
+					slot_count = currslot - 1;
 				}
 			} else {
 				CACKEY_DEBUG_PRINTF("Second call to SCardListReaders failed, return %s/%li", CACKEY_DEBUG_FUNC_SCARDERR_TO_STR(scard_listreaders_ret), (long) scard_listreaders_ret);
 			}
 
@@ -3180,11 +3186,13 @@
 
 		return(CKR_BUFFER_TOO_SMALL);	
 	}
 
 	for (currslot = 0; currslot < slot_count; currslot++) {
-		pSlotList[currslot] = currslot;
+		/* Start with Slot ID 1, to avoid a bug in GDM */
+		/* Bug 619297: https://bugzilla.gnome.org/show_bug.cgi?id=619297 */
+		pSlotList[currslot] = currslot + 1;
 	}
 
 	*pulCount = slot_count;
 
 	CACKEY_DEBUG_PRINTF("Returning CKR_OK (%i).  Found %lu readers.", CKR_OK, (unsigned long) slot_count);