Comment 14 for bug 368135

my xorg.conf is practically empty:

Section "Monitor"
 Identifier "Configured Monitor"
EndSection

Section "Screen"
 Identifier "Default Screen"
 Monitor "Configured Monitor"
 Device "Configured Video Device"
 SubSection "Display"
  Virtual 1024 1368
 EndSubSection
EndSection

Section "Device"
 Identifier "Configured Video Device"
EndSection

--end of xorg.conf

but to get touch screen to work I had to manually create this file:
/etc/hal/fdi/policy/gunzetouch.fdi:

<?xml version="1.0" encoding="ISO-8859-1" ?>
<deviceinfo version="0.2">
<device>
  <match key="info.product" contains="GUNZE USB Touch Panel">
 <merge key="input.x11_driver" type="string">evtouch</merge>
 <merge key="input.x11_options.ReportingMode" type="string">Raw</merge>
 <merge key="input.x11_options.Emulate3Buttons" type="string">false</merge>
 <merge key="input.x11_options.Emulate3Timeout" type="string">1</merge>
 <merge key="input.x11_options.SendCoreEvents" type="string">On</merge>
 <merge key="input.x11_options.MinX" type="string">35</merge>
 <merge key="input.x11_options.MinY" type="string">37</merge>
 <merge key="input.x11_options.MaxX" type="string">990</merge>
 <merge key="input.x11_options.MaxY" type="string">986</merge>
  </match>
</device>
</deviceinfo>