diff --git a/packages/bsp/common/usr/bin/armbianmonitor b/packages/bsp/common/usr/bin/armbianmonitor
index 2a49f50293..bdf697ce28 100755
--- a/packages/bsp/common/usr/bin/armbianmonitor
+++ b/packages/bsp/common/usr/bin/armbianmonitor
@@ -275,6 +275,9 @@ MonitorMode() {
 
 	# Allow armbianmonitor to return back to armbian-config
 	trap "echo ; exit 0" 0 1 2 3 15
+	
+	# Try to renice to 19 to not interfere with OS behaviour
+	renice 19 $BASHPID >/dev/null 2>&1
 
 	LastUserStat=0
 	LastNiceStat=0
@@ -303,7 +306,8 @@ MonitorMode() {
 	[ -f "${Sensors}/pmictemp" ] && DisplayHeader="${DisplayHeader}   PMIC" || PMICTemp='n/a'
 	DCIN=$(CheckDCINVoltage)
 	[ -f "${DCIN}" ] && DisplayHeader="${DisplayHeader}   DC-IN" || DCIN='n/a'
-	[ -f /sys/devices/virtual/thermal/cooling_device0/cur_state ] && DisplayHeader="${DisplayHeader}  C.St."
+	[ -f /sys/devices/virtual/thermal/cooling_device0/cur_state ] \
+		&& DisplayHeader="${DisplayHeader}  C.St." || CoolingState='n/a'
 	echo -e "Stop monitoring using [ctrl]-[c]"
 	[ $(echo "${SleepInterval} * 10" | bc | cut -d. -f1) -le 15 2>/dev/null ] \
 		&& echo "Warning: High update frequency (${SleepInterval} sec) might change system behaviour!"
@@ -359,7 +363,7 @@ MonitorMode() {
 		fi
 		[ "X${DCIN}" != "Xn/a" ] && \
 			(DCINvoltage=$(awk '{printf ("%0.2f",$1/1000000); }' <"${DCIN}") ; echo -e "  $(printf "%5s" ${DCINvoltage})V\c")
-		[ -f /sys/devices/virtual/thermal/cooling_device0/cur_state ] && printf "  %d/%d" $(cat /sys/devices/virtual/thermal/cooling_device0/cur_state) $(cat /sys/devices/virtual/thermal/cooling_device0/max_state)
+		[ "X${CoolingState}" != "Xn/a" ] && printf "  %d/%d" $(cat /sys/devices/virtual/thermal/cooling_device0/cur_state) $(cat /sys/devices/virtual/thermal/cooling_device0/max_state)
 		[ "$c" == "s" ] && sleep 0.3 || sleep ${SleepInterval}
 	done
 } # MonitorMode