diff --git a/usb/usb/Usb.cpp b/usb/usb/Usb.cpp
index a98eca7b..7b037303 100644
--- a/usb/usb/Usb.cpp
+++ b/usb/usb/Usb.cpp
@@ -1223,6 +1223,16 @@ static void uevent_event(uint32_t /*epevents*/, struct data *payload) {
             payload->usb->mPartnerUp = true;
             pthread_cond_signal(&payload->usb->mPartnerCV);
             pthread_mutex_unlock(&payload->usb->mPartnerLock);
+        } else if (std::regex_match(cp, std::regex("(remove)(.*)(-partner)"))) {
+            string drmDisconnectPath = string(kDisplayPortDrmPath) + "usbc_cable_disconnect";
+
+            if (payload->usb->mPartnerSupportsDisplayPort) {
+                ALOGI("displayport partner removed");
+                if (!WriteStringToFile("1", drmDisconnectPath)) {
+                    ALOGE("Failed to signal disconnect to drm");
+                }
+                payload->usb->mPartnerSupportsDisplayPort = false;
+            }
         } else if (!strncmp(cp, "DEVTYPE=typec_", strlen("DEVTYPE=typec_")) ||
                    !strncmp(cp, "DRIVER=max77759tcpc",
                             strlen("DRIVER=max77759tcpc")) ||
@@ -1389,6 +1399,8 @@ ScopedAStatus Usb::setCallback(const shared_ptr<IUsbCallback>& in_callback) {
     return ScopedAStatus::ok();
 }
 
+/***** DisplayPort Alt Mode Helpers *****/
+
 Status Usb::getDisplayPortUsbPathHelper(string *path) {
     DIR *dp;
     Status result = Status::ERROR;
@@ -1805,6 +1817,7 @@ void Usb::setupDisplayPortPoll() {
     int ret;
 
     ALOGI("usbdp: setup: beginning setup for displayport poll thread");
+    mPartnerSupportsDisplayPort = true;
 
     /*
      * If thread is currently starting, then it hasn't setup DisplayPort fd's, and we can abandon
diff --git a/usb/usb/Usb.h b/usb/usb/Usb.h
index 4d9ab538..60064514 100644
--- a/usb/usb/Usb.h
+++ b/usb/usb/Usb.h
@@ -156,6 +156,11 @@ struct Usb : public BnUsb {
      * eventfd to monitor whether a connection results in DisplayPort Alt Mode activating.
      */
     int mDisplayPortActivateTimer;
+    /*
+     * Indicates whether or not port partner supports DisplayPort, and is used to
+     * communicate to the drm when the port partner physically disconnects.
+     */
+    bool mPartnerSupportsDisplayPort;
 
   private:
     pthread_t mPoll;
diff --git a/usb/usb/android.hardware.usb-service.rc b/usb/usb/android.hardware.usb-service.rc
index 7619869a..e710451e 100644
--- a/usb/usb/android.hardware.usb-service.rc
+++ b/usb/usb/android.hardware.usb-service.rc
@@ -21,6 +21,7 @@ on post-fs
     chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation
     chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/pin_assignment
     chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/link_status
+    chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/usbc_cable_disconnect
     chown root system /sys/devices/platform/11110000.usb/dwc3_exynos_otg_b_sess
     chown root system /sys/devices/platform/11110000.usb/dwc3_exynos_otg_id
     chown root system /sys/devices/platform/11110000.usb/usb_data_enabled
@@ -44,4 +45,5 @@ on post-fs
     chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation
     chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/pin_assignment
     chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/link_status
+    chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/usbc_cable_disconnect
     chmod 664 /sys/devices/platform/google,pogo/enable_usb