diff --git a/src/vs/workbench/contrib/terminal/browser/terminalProcessManager.ts b/src/vs/workbench/contrib/terminal/browser/terminalProcessManager.ts
index 02b12985084..251a94fd3e6 100644
--- a/src/vs/workbench/contrib/terminal/browser/terminalProcessManager.ts
+++ b/src/vs/workbench/contrib/terminal/browser/terminalProcessManager.ts
@@ -370,6 +370,7 @@ export class TerminalProcessManager extends Disposable implements ITerminalProce
 		}
 		this._processListeners = [
 			newProcess.onProcessReady((e: IProcessReadyEvent) => {
+				this._logService.debug('onProcessReady', e);
 				this._processTraits = e;
 				this.shellProcessId = e.pid;
 				this._initialCwd = e.cwd;
@@ -379,6 +380,7 @@ export class TerminalProcessManager extends Disposable implements ITerminalProce
 
 				if (this._preLaunchInputQueue.length > 0 && this._process) {
 					// Send any queued data that's waiting
+					this._logService.debug('sending prelaunch input queue', this._preLaunchInputQueue);
 					newProcess.input(this._preLaunchInputQueue.join(''));
 					this._preLaunchInputQueue.length = 0;
 				}
@@ -632,6 +634,7 @@ export class TerminalProcessManager extends Disposable implements ITerminalProce
 			}
 		} else {
 			// If the pty is not ready, queue the data received to send later
+			this._logService.debug('queueing data in prelaunch input queue', data);
 			this._preLaunchInputQueue.push(data);
 		}
 	}