diff -Nru vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/debian/changelog vdr-plugin-graphlcd-0.3.0+git20170129/debian/changelog
--- vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/debian/changelog	2015-12-22 22:21:40.000000000 +0000
+++ vdr-plugin-graphlcd-0.3.0+git20170129/debian/changelog	2017-03-05 18:10:31.000000000 +0000
@@ -1,14 +1,16 @@
-vdr-plugin-graphlcd (0.3.0+git20131012-touchcol-2yavdr3~trusty) trusty; urgency=medium
+vdr-plugin-graphlcd (0.3.0+git20170129-0yavdr0~trusty) trusty; urgency=medium
 
   * automatic rebuild
 
- -- yavdr package builder <release@yavdr.org>  Tue, 22 Dec 2015 23:21:40 +0100
+ -- Alexander Grothe <seahawk1986@gmx.de>  Sun, 05 Mar 2017 19:10:31 +0100
 
-vdr-plugin-graphlcd (0.3.0+git20131012-touchcol-2yavdr3~trusty) trusty; urgency=medium
+vdr-plugin-graphlcd (0.3.0+git20170129-0yavdr0~trusty) trusty; urgency=medium
 
-  * automatic rebuild
+  * new upstream snapshot
+    - adapted to vdr >= 2.3.1
+    - using mutex in cGraphLCDDisplay::SetBrightness
 
- -- yavdr package builder <release@yavdr.org>  Tue, 22 Dec 2015 18:44:17 +0100
+ -- Alexander Grothe <seahawk1986@gmx.de>  Sun, 29 Jan 2017 12:27:21 +0100
 
 vdr-plugin-graphlcd (0.3.0+git20131012-touchcol-2yavdr2~trusty) trusty; urgency=medium
 
diff -Nru vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/display.c vdr-plugin-graphlcd-0.3.0+git20170129/display.c
--- vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/display.c	2013-01-27 00:50:48.000000000 +0000
+++ vdr-plugin-graphlcd-0.3.0+git20170129/display.c	2017-01-29 01:24:28.000000000 +0000
@@ -492,7 +492,7 @@
 
 void cGraphLCDDisplay::SetBrightness()
 {
-    //mutex.Lock();
+    mMutex.Lock();
     bool bActive = bBrightnessActive
                    || (mState == StateMenu)
                    || (GraphLCDSetup.ShowVolume && mShowVolume)
@@ -521,7 +521,7 @@
             }
         }
     }
-    //mutex.Unlock();
+    mMutex.Unlock();
 }
 
 void cGraphLCDDisplay::ForceUpdateBrightness() {
diff -Nru vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/state.c vdr-plugin-graphlcd-0.3.0+git20170129/state.c
--- vdr-plugin-graphlcd-0.3.0+git20131012-touchcol/state.c	2013-01-27 00:50:48.000000000 +0000
+++ vdr-plugin-graphlcd-0.3.0+git20170129/state.c	2017-01-29 01:24:28.000000000 +0000
@@ -675,8 +675,12 @@
     }
 
     mutex.Lock();
-
+#if APIVERSNUM < 20301
     cChannel * ch = Channels.GetByNumber(mChannel.number);
+#else
+    LOCK_CHANNELS_READ;
+    const cChannel * ch = Channels->GetByNumber(mChannel.number);
+#endif
     if (ch)
     {
         mChannel.id = ch->GetChannelID();
@@ -713,8 +717,11 @@
 {
     mutex.Lock();
     const cEvent * present = NULL, * following = NULL;
+#if APIVERSNUM < 20301
     cSchedulesLock schedulesLock;
-
+#else
+    LOCK_SCHEDULES_READ;
+#endif
     // backup current values
     std::string currTitle       = mPresent.title;
     std::string currShortText   = mPresent.shortText;
@@ -737,8 +744,11 @@
     mFollowing.title = "";
     mFollowing.shortText = "";
     mFollowing.description = "";
-
+#if APIVERSNUM < 20301
     const cSchedules * schedules = cSchedules::Schedules(schedulesLock);
+#else
+    const cSchedules * schedules = Schedules;
+#endif
     if (mChannel.id.Valid())
     {
         if (schedules)