# HG changeset patch
# User Chris Cannam
# Date 1415635169 0
# Node ID e04d3c54d0ee8ed672ccc7e860e23d790706a360
# Parent  2857e6352b06347e27af8bf830542e3e6e587330# Parent  0cdaf382f21eb4c743f71c7fad3fe9573aeefbe7
Merge

diff -r 2857e6352b06 -r e04d3c54d0ee view/Pane.cpp
--- a/view/Pane.cpp	Mon Nov 10 15:59:09 2014 +0000
+++ b/view/Pane.cpp	Mon Nov 10 15:59:29 2014 +0000
@@ -2286,6 +2286,13 @@
         // Coarse wheel information (or vertical zoom, which is
         // necessarily coarse itself)
 
+        // Sometimes on Linux we're seeing absurdly extreme angles on
+        // the first wheel event -- discard those entirely
+        if (abs(m_pendingWheelAngle) > 1000) {
+            m_pendingWheelAngle = 0;
+            return;
+        }
+        
         while (abs(m_pendingWheelAngle) >= 120) {
 
             int sign = (m_pendingWheelAngle < 0 ? -1 : 1);