Fetch from:
https://projects.archlinux.org/svntogit/packages.git/commit/trunk?h=packages/xf86-video-sis&id=7aaa7a9786ce5654df877311909244e0a6c42fd1

Signed-off-by: Bernd Kuhls <berndkuhls@hotmail.com>

--- xf86-video-sis-0.10.7/src/sis_driver.c	2013-03-10 13:57:50.000000000 +0100
+++ xf86-video-sis-0.10.7/src/sis_driver.c.new	2013-03-10 13:54:48.645203559 +0100
@@ -9378,7 +9378,15 @@
      }
      if(doit) {
 	sigstate = xf86BlockSIGIO();
-#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 15
+#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 18
+        {
+            double dx = x, dy = y;
+            miPointerSetPosition(inputInfo.pointer, Absolute, &dx, &dy,
+                NULL, NULL);
+            x = (int)dx;
+            y = (int)dy;
+        }
+#elif GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 15
         {
             double dx = x, dy = y;
             miPointerSetPosition(inputInfo.pointer, Absolute, &dx, &dy);