diff --git a/server/src/Services/HttpHdmiVideoStreamService.cs b/server/src/Services/HttpHdmiVideoStreamService.cs
index 5682cc0..c773d57 100644
--- a/server/src/Services/HttpHdmiVideoStreamService.cs
+++ b/server/src/Services/HttpHdmiVideoStreamService.cs
@@ -119,7 +119,27 @@ public class HttpHdmiVideoStreamService : BackgroundService
     private async Task<HdmiIn?> GetOrCreateHdmiInAsync(string boardId)
     {
         if (_hdmiInDict.TryGetValue(boardId, out var hdmiIn))
+        {
+            try
+            {
+                var enableResult = await hdmiIn.EnableTrans(true);
+                if (!enableResult.IsSuccessful)
+                {
+                    logger.Error($"Failed to enable HDMI transmission for board {boardId}: {enableResult.Error}");
+                    return null;
+                }
+                logger.Info($"Successfully enabled HDMI transmission for board {boardId}");
+            }
+            catch (Exception ex)
+            {
+                logger.Error(ex, $"Exception occurred while enabling HDMI transmission for board {boardId}");
+                return null;
+            }
+
+            _hdmiInDict[boardId] = hdmiIn;
+            _hdmiInCtsDict[boardId] = new CancellationTokenSource();
             return hdmiIn;
+        }
 
         var db = new Database.AppDataConnection();
         if (db == null)
diff --git a/src/APIClient.ts b/src/APIClient.ts
index e48ad14..62a6e23 100644
--- a/src/APIClient.ts
+++ b/src/APIClient.ts
@@ -3059,6 +3059,59 @@ export class HdmiVideoStreamClient {
         }
         return Promise.resolve<HdmiVideoStreamEndpoint>(null as any);
     }
+
+    disableHdmiTransmission( cancelToken?: CancelToken): Promise<FileResponse | null> {
+        let url_ = this.baseUrl + "/api/HdmiVideoStream/DisableHdmiTransmission";
+        url_ = url_.replace(/[?&]$/, "");
+
+        let options_: AxiosRequestConfig = {
+            responseType: "blob",
+            method: "POST",
+            url: url_,
+            headers: {
+                "Accept": "application/octet-stream"
+            },
+            cancelToken
+        };
+
+        return this.instance.request(options_).catch((_error: any) => {
+            if (isAxiosError(_error) && _error.response) {
+                return _error.response;
+            } else {
+                throw _error;
+            }
+        }).then((_response: AxiosResponse) => {
+            return this.processDisableHdmiTransmission(_response);
+        });
+    }
+
+    protected processDisableHdmiTransmission(response: AxiosResponse): Promise<FileResponse | null> {
+        const status = response.status;
+        let _headers: any = {};
+        if (response.headers && typeof response.headers === "object") {
+            for (const k in response.headers) {
+                if (response.headers.hasOwnProperty(k)) {
+                    _headers[k] = response.headers[k];
+                }
+            }
+        }
+        if (status === 200 || status === 206) {
+            const contentDisposition = response.headers ? response.headers["content-disposition"] : undefined;
+            let fileNameMatch = contentDisposition ? /filename\*=(?:(\\?['"])(.*?)\1|(?:[^\s]+'.*?')?([^;\n]*))/g.exec(contentDisposition) : undefined;
+            let fileName = fileNameMatch && fileNameMatch.length > 1 ? fileNameMatch[3] || fileNameMatch[2] : undefined;
+            if (fileName) {
+                fileName = decodeURIComponent(fileName);
+            } else {
+                fileNameMatch = contentDisposition ? /filename="?([^"]*?)"?(;|$)/g.exec(contentDisposition) : undefined;
+                fileName = fileNameMatch && fileNameMatch.length > 1 ? fileNameMatch[1] : undefined;
+            }
+            return Promise.resolve({ fileName: fileName, status: status, data: new Blob([response.data], { type: response.headers["content-type"] }), headers: _headers });
+        } else if (status !== 200 && status !== 204) {
+            const _responseText = response.data;
+            return throwException("An unexpected server error occurred.", status, _responseText, _headers);
+        }
+        return Promise.resolve<FileResponse | null>(null as any);
+    }
 }
 
 export class JtagClient {
diff --git a/src/views/Project/HdmiVideoStream.vue b/src/views/Project/HdmiVideoStream.vue
index 944adf2..6e168b7 100644
--- a/src/views/Project/HdmiVideoStream.vue
+++ b/src/views/Project/HdmiVideoStream.vue
@@ -362,6 +362,9 @@ function stopStream() {
   isPlaying.value = false;
   currentVideoSource.value = '';
   videoStatus.value = '已停止播放';
+
+  const client = AuthManager.createAuthenticatedHdmiVideoStreamClient();
+  client.disableHdmiTransmission();
   
   addLog('info', '停止播放HDMI视频流');
   alert?.info('已停止播放HDMI视频流');