wrap notification process in try catch and capture stderr data

piker/ui/_notify.py

@@ -82,7 +82,6 @@ async def notify_from_ems_status_msg(
             os.environ['DBUS_SESSION_BUS_ADDRESS'] = (
                 f'unix:path=/run/user/{_dbus_uid}/bus'
             )
-
     result = await trio.run_process(
         [
             'notify-send',
@@ -94,5 +93,16 @@ async def notify_from_ems_status_msg(
             # pack in a broker independent way?
             f"'{msg.pformat()}'",
         ],           
+        capture_stdout=True,
+        capture_stderr=True,
+        check=False,
     )
+    if result.returncode != 0:
+        log.warn(f'No notification daemon installed stderr: {result.stderr}')
+                
+        
     log.runtime(result)    
+
+
+
+