From c36aa4b4305b1493a37f927db16218bcf32bdd35 Mon Sep 17 00:00:00 2001
From: jordanruthe <31575189+jordanruthe@users.noreply.github.com>
Date: Sun, 29 Nov 2020 10:44:07 -0500
Subject: [PATCH] screen: fix case for no power devices

---
 screen.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/screen.py b/screen.py
index 3c197c3b..635fc280 100644
--- a/screen.py
+++ b/screen.py
@@ -398,7 +398,9 @@ class KlipperScreen(Gtk.Window):
         # Reinitialize printer, in case the printer was shut down and anything has changed.
         self.printer.__init__(printer_info['result'], data)
         self.ws_subscribe()
-        self.printer.configure_power_devices(powerdevs['result'])
+
+        if powerdevs != False:
+            self.printer.configure_power_devices(powerdevs['result'])
 
         if self.files == None:
             self.files = KlippyFiles(self)