From 9621155f9cefaf81d9ed0c353e2aad7a723a3156 Mon Sep 17 00:00:00 2001
From: sphh <s.p.helma@gmx.net>
Date: Tue, 18 May 2021 18:27:37 +0000
Subject: [PATCH] Return error message and exit.

---
 contrib/rotate-screen/rotate-screen | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/contrib/rotate-screen/rotate-screen b/contrib/rotate-screen/rotate-screen
index f139974f9..99584b44f 100755
--- a/contrib/rotate-screen/rotate-screen
+++ b/contrib/rotate-screen/rotate-screen
@@ -55,7 +55,8 @@ get_orientation () {
                         --method org.freedesktop.DBus.Properties.Get \
                                  net.hadess.SensorProxy HasAccelerometer)
     if test "$ORIENTATION" != "(<true>,)"; then
-        echo "No sensor available!"
+        echo "No sensor available! "
+        echo "(Do you have the 'iio-sensor-proxy' package installed and enabled?)"
         exit 10
     fi
 
@@ -130,6 +131,11 @@ do_rotate () {
 
 # Get the tablet's orientation
 ORIENTATION=$(get_orientation)
+ret=$?
+if test $ret != 0; then
+    echo $ORIENTATION
+    exit $ret
+fi
 
 # Get all pointers
 POINTERS=$($XINPUT | grep slave | grep pointer | sed -e 's/^.*id=\([[:digit:]]\+\).*$/\1/')