X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flogin%2Flogind-device.c;h=51b15358baa07684819d7c6717e46454ed1bd266;hb=90527fbb2c48ffda5c6d8f232f8993a90b2632a4;hp=828e1efe4a2b79d01a5a63a432d8c2f9fd1ba435;hpb=5430f7f2bc7330f3088b894166bf3524a067e3d8;p=elogind.git

diff --git a/src/login/logind-device.c b/src/login/logind-device.c
index 828e1efe4..51b15358b 100644
--- a/src/login/logind-device.c
+++ b/src/login/logind-device.c
@@ -65,22 +65,32 @@ void device_free(Device *d) {
 }
 
 void device_detach(Device *d) {
+        Seat *s;
         assert(d);
 
-        if (d->seat)
-                LIST_REMOVE(Device, devices, d->seat->devices, d);
+        if (!d->seat)
+                return;
 
-        seat_add_to_gc_queue(d->seat);
+        s = d->seat;
+        LIST_REMOVE(Device, devices, d->seat->devices, d);
         d->seat = NULL;
+
+        seat_add_to_gc_queue(s);
+        seat_send_changed(s, "CanGraphical\0");
 }
 
 void device_attach(Device *d, Seat *s) {
         assert(d);
         assert(s);
 
+        if (d->seat == s)
+                return;
+
         if (d->seat)
                 device_detach(d);
 
         d->seat = s;
         LIST_PREPEND(Device, devices, s->devices, d);
+
+        seat_send_changed(s, "CanGraphical\0");
 }