Add more logging around call to virtual keyboard

This is to help investigate issue martin-ueding#36.

bin/think-rotate

@@ -166,23 +166,39 @@ done
 mylogger $"Starting or killing virtual keyboard"
 kdialog-update $"Starting or killing virtual keyboard"
 
+# Log the environment variables
+mylogger "Environment variables: $(env)"
+
 # Start the virtual keyboard, if it is installed.
+mylogger "Checking to see if '$virtual_kbd' is available"
 if type "$virtual_kbd" &> /dev/null
 then
+    mylogger "The virtual keyboard program '$virtual_kbd' is visible to 'type'"
+    mylogger "The value of setto is '${setto}'"
     if [[ "$setto" = "normal" ]]
     then
+        mylogger "The virtual keyboard '${virtual_kbd}' will be killed"
         # So the user reverts back to normal. Kill the virtual keyboard (if it
         # is running), since it does not make any sense to use that any more.
         if pgrep "$virtual_kbd" &> /dev/null
         then
+            mylogger "Virtual keyboard is running with PIDs: '$(pgrep $virtual_kbd)'; killing it"
             killall "$virtual_kbd"
         fi
+        mylogger "Virtual keyboard killed; remaining PIDs: '$(pgrep $virtual_kbd)'"
     else
         # The user rotated the screen. Start the virtual keyboard since he
         # might need it.
-        "$virtual_kbd" &> /dev/null &
+        mylogger "Making log file for virtual keyboard '$virtual_kbd'"
+        temp_logging_file="$(mktemp)"
+        mylogger "Starting virtual keyboard and directing output to '$temp_logging_file'"
+        "$virtual_kbd" &> "$temp_logging_file" &
+        mylogger "Virtual keyboard started; PIDs: '$(pgrep $virtual_kbd)'"
     fi
 fi
+mylogger "Sleeping 1 sec to check on status of virtual keyboard"
+sleep 1
+mylogger "Virtual keyboard PIDs: '$(pgrep $virtual_kbd)'"
 
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 #                           TrackPoint and TouchPad                           #