diff --git a/drmdevice.cpp b/drmdevice.cpp
index 7a54c9d..25273ac 100644
--- a/drmdevice.cpp
+++ b/drmdevice.cpp
@@ -96,6 +96,7 @@
     crtcs_.emplace_back(std::move(crtc));
   }
 
+  std::vector<int> possible_clones;
   for (int i = 0; !ret && i < res->count_encoders; ++i) {
     drmModeEncoderPtr e = drmModeGetEncoder(fd(), res->encoders[i]);
     if (!e) {
@@ -116,12 +117,18 @@
 
     std::unique_ptr<DrmEncoder> enc(
         new DrmEncoder(e, current_crtc, possible_crtcs));
-
+    possible_clones.push_back(e->possible_clones);
     drmModeFreeEncoder(e);
 
     encoders_.emplace_back(std::move(enc));
   }
 
+  for (unsigned int i = 0; i < encoders_.size(); i++) {
+    for (unsigned int j = 0; j < encoders_.size(); j++)
+      if (possible_clones[i] & (1 << j))
+        encoders_[i]->AddPossibleClone(encoders_[j].get());
+  }
+
   for (int i = 0; !ret && i < res->count_connectors; ++i) {
     drmModeConnectorPtr c = drmModeGetConnector(fd(), res->connectors[i]);
     if (!c) {