Index: share/man/man9/device_quiet.9
===================================================================
--- share/man/man9/device_quiet.9
+++ share/man/man9/device_quiet.9
@@ -49,16 +49,17 @@
 Each device has a quiet flag associated with it.
 A device is
 verbose by default when it is created but may be quieted to prevent
-the device identification string to be printed during probe.
+printing of the device identification string during attach
+and printing of a message during detach.
 To quiet a device, call
-.Fn device_quiet ,
-to re-enable to probe message (to make the message appear again, for
-example after a
-.Xr device_detach 9 )
-call
+.Fn device_quiet
+during a device driver probe routine.
+To re-enable probe messages call
 .Fn device_verbose .
 To test to see if a device is quieted, call
 .Fn device_is_quiet .
+.Pp
+Devices are implicitly marked verbose after a driver detaches.
 .Sh SEE ALSO
 .Xr device 9
 .Sh AUTHORS
Index: sys/dev/cxgbe/t4_iov.c
===================================================================
--- sys/dev/cxgbe/t4_iov.c
+++ sys/dev/cxgbe/t4_iov.c
@@ -217,7 +217,6 @@
 		if (error)
 			return (error);
 	}
-	device_verbose(dev);
 	return (0);
 }
 
Index: sys/kern/subr_bus.c
===================================================================
--- sys/kern/subr_bus.c
+++ sys/kern/subr_bus.c
@@ -2146,6 +2146,12 @@
 			}
 
 			/*
+			 * Reset DF_QUIET in case this driver doesn't
+			 * end up as the best driver.
+			 */
+			device_verbose(child);
+
+			/*
 			 * Probes that return BUS_PROBE_NOWILDCARD or lower
 			 * only match on devices whose driver was explicitly
 			 * specified.
@@ -2970,6 +2976,7 @@
 	if (!(dev->flags & DF_FIXEDCLASS))
 		devclass_delete_device(dev->devclass, dev);
 
+	device_verbose(dev);
 	dev->state = DS_NOTPRESENT;
 	(void)device_set_driver(dev, NULL);
 	device_sysctl_fini(dev);