diff --git a/window_scene/screen_session_manager/src/screen_session_manager.cpp b/window_scene/screen_session_manager/src/screen_session_manager.cpp
index 4e1c16aee825f0c104ae2dc5cfedd3329b9a3b8a..904748e949f3145731fd4e5faf6be6801e090a7b 100644
--- a/window_scene/screen_session_manager/src/screen_session_manager.cpp
+++ b/window_scene/screen_session_manager/src/screen_session_manager.cpp
@@ -2109,12 +2109,7 @@ std::vector<DisplayId> ScreenSessionManager::GetAllDisplayIds()
                 sessionIt.first);
             continue;
         }
-        sptr<DisplayInfo> displayInfo = screenSession->ConvertToDisplayInfo();
-        if (displayInfo == nullptr) {
-            TLOGE(WmsLogTag::DMS, "error, displayInfo is nullptr.");
-            continue;
-        }
-        DisplayId displayId = displayInfo->GetDisplayId();
+        DisplayId displayId = screenSession->GetDisplayId();
         res.push_back(displayId);
         if (!FoldScreenStateInternel::IsSuperFoldDisplayDevice()) {
             continue;