How to get ubuntu 8.04 working with the DigiPoS "Toccare" Bezel Free Touch Screen

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Situation

Trying to use a DigiPoS "Toccare" Bezel Free Touch Screen with ubuntu 8.04.

Elements:

• The graphic chipset of the PC is an intel GMA 3150.
• The intel driver is too recent for ubuntu 8.04, so the only driver that works is the old vesa.
• The resolution is limited to 800x600, but both the chipset and the screen support 1024x768.

Configuration

Find the correct Modeline using gtf.

# gtf 1024 768 60

You will have to configure xorg manually.

Here are the relevant parts of xorg.conf

Section "Monitor"
        Identifier      "Configured Monitor"
        Vendorname      "Plug 'n' Play"
        Modelname       "Plug 'n' Play"
        HorizSync 31.47-60.02
        VertRefresh 56-75
       Modeline "1024x768_60.00"  64.11  1024 1080 1184 1344  768 769 772 795  -HSync +Vsync
        Gamma   1.0
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "Configured Video Device"
        Monitor         "Configured Monitor"
        Defaultdepth    16
        SubSection "Display"
                Depth   16
                Virtual 1024    768
                Modes           "1024x768@60" "800x600@60" "640x480@60"
        EndSubSection
EndSection

You can find the synchronization frequencies in the screen datasheet.

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