Update debian-config-functions

debian-config-functions

@@ -524,6 +524,9 @@ function configure_desktop ()
 
 		# install desktop package
 		debconf-apt-progress -- apt-get -y install $1 armbian-${DISTROID}-desktop
+		# strectch workaround
+		[[ ${DISTROID} == stretch ]] && debconf-apt-progress -- apt -y purge lightdm
+		# install display manager
 		DEBIAN_FRONTEND=noninteractive debconf-apt-progress -- apt-get -y -qq install nodm
 
 		# clean apt cache