--- //.git/fs/object/403149d7de4dbe4cc4b1fd9cb3a164e51dbccc15/tree//sys/src/cmd/screenlock.c
+++ /sys/src/cmd/screenlock.c
@@ -9,6 +9,7 @@
 char pic[] = "/lib/bunny.bit";
 int debug;
 long blank;
+int blankscreen = 0;
 
 void
 usage(void)
@@ -198,7 +199,8 @@
 	/* screen is now open and covered.  grab mouse and hold on tight */
 	procrfork(top, nil, 8*1024, RFFDG);
 	procrfork(grabmouse, nil, 8*1024, RFFDG);
-	procrfork(blanker, nil, 8*1024, RFFDG);
+	if(blankscreen)
+		procrfork(blanker, nil, 8*1024, RFFDG);
 
 	/* clear the cursor */
 	if((fd = open("/dev/cursor", OWRITE)) >= 0){
@@ -214,6 +216,9 @@
 	ARGBEGIN{
 	case 'd':
 		debug++;
+		break;
+	case 'b':
+		blankscreen=1;
 		break;
 	default:
 		usage();