Making L1730SF touchscreen work on Linux

I have had some trouble making my touch panel to work. The X and Y axis are all interchanged in both Ubuntu and Linux MCE and probably all distributions. This is as I learned due that LG is using some what different signaling. The solution is quite simple, here is a step by step instruction.

• Download the Linux touchscreen driver for X called evtouch.
  
• Unpack the archived files: tar xzvf evtouch-xx.yy.tar.gz
• Copy the file "evtouch_drv.so" to either of these locations, depends on your linux distribution: "/usr/X11R6/lib/modules/input" or "/usr/lib/xorg/modules/input/" Which ever full path that you find on your system is the correct one to use.
  
• Make sure file rights is correct by using "chmod 644 /usr/X11R6/lib/modules/input/evtouch_drv.so" or "chmod 644 /usr/lib/xorg/modules/input/evtouch_drv.so"
• Figure out which device is the touchscreen uses, view the file "/proc/bus/input/devices" and find the USB touch panel and see which event is uses.
• This event id can change at boot time, so I suggest creating a script that changes the X conf to the current one every boot. My system seams to have stabilized the event id but if someone need a script let me know and I will write it for you.
  
• Insert the bold red lines lines below to the file "/etc/X11/XF86Config-4" or "/etc/X11/xorg.conf". (The lines not bold and red should already be found in the file.
• NOTE: Change the /event4 to whatever event your touch is on!
  

Section "InputDevice"
# Option "Calibrate" "1"
Identifier "touchscreen"
Driver "evtouch"
Option "CorePointer"
Option "Device" "/dev/input/event4"
Option "DeviceName" "touchscreen"
Option "MinX" "295"
Option "MinY" "200"
Option "MaxX" "3815"
Option "MaxY" "3948"
Option "ReportingMode" "Raw"
Option "Emulate3Buttons"
Option "Emulate3Timeout" "50"
Option "SendCoreEvents" "On"
Option "Rotate" "cw"
Option "SwapY" "1"
#Option "TapTimer" "200"
EndSection

Section "ServerLayout"
Identifier "Default Layout"
Screen "Default Screen"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
InputDevice "touchscreen" "CorePointer"
EndSection

• Thats it! Try it by pressing CTRL-ALT-F1 and login and then "pkill X", if X isn't restaring by it self start it with startx. The X is availavle at CTRL-ALT_F7.
• You could change the min/max x/y if my calibrations isn't matching your screen.
• Remember that your system might have placed the device on other event than event4! Change according to my instruction above.
  
• You might need mouse dummy device if you get strange clicking behavior, see the evtouch homepage for this.
  
• The Option "TapTimer" "200" can be uncommented and set to your liking.

I hope this will help out other people trying to get their screens set up, got problems? Let me know!

I have also set up MythTV on my Nova T-500 card tonight, I'm now watching encrypted channels using my Boxer card in a phoenix card reader :-)

This weekend I also hooked up my house electricity meeter to my server so I can monitor every watt that is being used in real time, really cool! It is a LED sensor that detect the pulses from my meeter...more of this in next post!