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Old 12-24-2008, 04:12 PM   #1
Registered: Oct 2006
Distribution: Debian x64
Posts: 198

Rep: Reputation: 30
How to setup elo drivers for Gvision L15AX-JA

I have a Gvision L15AX with a serial touchscreen.

Setting up the elo drivers was more difficult for me than it needed to be. I tried to use the drivers provided by Elo with no success. At first I was confused as to the drivers I needed but found a hardware chipset/ driver list for touch screens here:

So I needed the elo drivers and I downloaded them from here:

They didn't work for me. I followed the walk through and had no luck. I wasn't even successful at removing them.

So with a fresh install of Debian Etch (the Xserver graphics were messed up in Lenny) I installed the elographics package.

aptitude install xserver-xorg-input-elographics
I knew by touching the touch screen with
cat /dev/ttyS1
that my touch screen was on /dev/ttyS1.

Then I edited /etc/X11/xorg.conf
The options are available through:
man elographics
My Y axis was flipped so I had to invert the max and min values. I would just change the values a little and then type ctrl+alt+backspace to restart X to test the new settings.
Important to know is that the minimum X,Y coordinates are for the top left and the maximum x,y coordinates for the bottom right. (So you:
touch the top-left to see how close your minimum values are and
touch the bottom-right to see how close your maximum values are.)
There's a picture here:
(and some xorg.conf examples)

Section "Files"
        FontPath        "/usr/share/fonts/X11/misc"
        FontPath        "/usr/X11R6/lib/X11/fonts/misc"
        FontPath        "/usr/share/fonts/X11/cyrillic"
        FontPath        "/usr/X11R6/lib/X11/fonts/cyrillic"
        FontPath        "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath        "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
        FontPath        "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath        "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
        FontPath        "/usr/share/fonts/X11/Type1"
        FontPath        "/usr/X11R6/lib/X11/fonts/Type1"
        FontPath        "/usr/share/fonts/X11/100dpi"
        FontPath        "/usr/X11R6/lib/X11/fonts/100dpi"
        FontPath        "/usr/share/fonts/X11/75dpi"
        FontPath        "/usr/X11R6/lib/X11/fonts/75dpi"
        # path to defoma fonts
        FontPath        "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"

Section "Module"
        Load    "i2c"
        Load    "bitmap"
        Load    "ddc"
        Load    "dri"
        Load    "extmod"
        Load    "freetype"
        Load    "glx"
        Load    "int10"
        Load    "vbe"

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc104"
        Option          "XkbLayout"     "us"

Section "InputDevice"
        Identifier      "Configured Mouse"
        Driver          "mouse"
        Option          "CorePointer"
        Option          "Device"               "/dev/input/mice"
        Option          "Protocol"              "ImPS/2"
        Option          "Emulate3Buttons"       "true"
Section "InputDevice"
        Identifier "ELO touchscreen"
        Driver "elographics"
        Option "Device" "/dev/ttyS1"

        Option "MinX" "300"
        Option "MaxX" "3800"
        Option "MinY" "3800"
        Option "MaxY" "300"

        Option  "UntouchDelay"  "10"
        Option  "ReportDelay"   "10"
        Option  "SendCoreEvents"        "yes"
        Option  "ScreenNumber"  "0"
        Option  "ButtonNumber"  "1"

Section "Device"
        Identifier      "ATI Technologies Inc ATI Default Card"
        Driver          "vesa"
        BusID           "PCI:1:5:0"

Section "Monitor"
        Identifier      "15LCD(ANA)"
        Option          "DPMS"

Section "Screen"
        Identifier      "Default Screen"
        Device          "ATI Technologies Inc ATI Default Card"
        Monitor         "15LCD(ANA)"
        DefaultDepth    24
        SubSection "Display"
                Depth           1
                Modes           "1024x768" "800x600" "720x400" "640x480"
        SubSection "Display"
                Depth           4
                Modes           "1024x768" "800x600" "720x400" "640x480"
        SubSection "Display"
                Depth           8
                Modes           "1024x768" "800x600" "720x400" "640x480"
        SubSection "Display"
                Depth           15
                Modes           "1024x768" "800x600" "720x400" "640x480"
        SubSection "Display"
                Depth           16
                Modes           "1024x768" "800x600" "720x400" "640x480"
        SubSection "Display"
                Depth           24
                Modes           "1024x768" "800x600" "720x400" "640x480"

Section "ServerLayout"
        Identifier      "Default Layout"
        Screen          "Default Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Configured Mouse"
        InputDevice     "ELO touchscreen" "SendCoreEvents"

Section "DRI"
        Mode    0666
I am very happy with the people that provided the Debian elographics package and wish I had know to try that first.

You can check to see what's going on with 'od' but I didn't know how to decipher the output.
od -w8 -d </dev/ttyS1
There's also touchcal available on Sourceforge but it didn't compile for me.
Old 12-25-2008, 09:13 AM   #2
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This post deals with the same subject as

Don't create more than one post per issue.
Old 12-25-2008, 01:58 PM   #3
Registered: Oct 2006
Distribution: Debian x64
Posts: 198

Original Poster
Rep: Reputation: 30
The other might be useful for a collection of working xorg.conf's for any touch screen monitor.
Thank you for your time.

Last edited by donnied; 12-26-2008 at 08:57 AM.


elo, gvision, how, touchscreen

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