diff --git a/tv/cec/1.0/default/HdmiCecDefault.cpp b/tv/cec/1.0/default/HdmiCecDefault.cpp
index 7b986de..b5f2ba7 100644
--- a/tv/cec/1.0/default/HdmiCecDefault.cpp
+++ b/tv/cec/1.0/default/HdmiCecDefault.cpp
@@ -151,7 +151,16 @@
 }
 
 Return<bool> HdmiCecDefault::isConnected(int32_t /*portId*/) {
-    return false;
+    uint16_t addr;
+    int ret = ioctl(mCecFd, CEC_ADAP_G_PHYS_ADDR, &addr);
+    if (ret) {
+        LOG(ERROR) << "Is connected failed, Error = " << strerror(errno);
+        return false;
+    }
+    if (addr == CEC_PHYS_ADDR_INVALID) {
+        return false;
+    }
+    return true;
 }
 
 // Initialise the cec file descriptor