[ltp] External Video on T30

[Diego Zamboni]

> Does anyone have the external video
> working on the t30?

What finally worked for me to get proper external video on my T30 was to
enable Xinerama:

Section "ServerFlags"
        Option      "Xinerama" "on"
EndSection

Then you have to define two devices, screens and monitors. Here's what I
have:

Section "Monitor"
        Identifier   "laptop"
        VendorName   "Monitor Vendor"
        ModelName    "Generic Laptop Display Panel 1400x1050"
        HorizSync    31.5 - 90.0
        VertRefresh  59.0 - 75.0
EndSection

Section "Monitor"
        Identifier   "external"
        VendorName   "Monitor Vendor"
        ModelName    "Generic External Monitor 1400x1050"
        HorizSync    31.5 - 90.0
        VertRefresh  59.0 - 75.0
        Option      "CrtScreen"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "ati"
        VendorName  "ATI"
        BoardName   "ATI Radeon Mobility 7500"
        Option      "AGPMode" "1"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier  "Videocard1"
        Driver      "ati"
        VendorName  "ATI"
        BoardName   "ATI Radeon Mobility 7500"
        Option      "AGPMode" "1"
        BusID       "PCI:1:0:0"
        Screen      1
EndSection

Section "Screen"
        Identifier "laptop"
        Device     "Videocard0"
        Monitor    "laptop"
        DefaultDepth     24
        SubSection "Display"
                Depth     24
                Modes    "1400x1050" "1280x1024" "1024x768"
        EndSubSection
EndSection

Section "Screen"
        Identifier "external"
        Device     "Videocard1"
        Monitor    "external"
        DefaultDepth     24
        SubSection "Display"
                Depth     24
                Modes    "1400x1050" "1600x1280" "1280x1024" "1024x768" 
        EndSubSection
        EndSubSection
EndSection

In my setup, I have two screens side by side:

Section "ServerLayout"
        Identifier     "Default Layout"
        Screen         "laptop" 0 0
        Screen         "external" RightOf "laptop"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
        InputDevice    "DevInputMice" "AlwaysCore"
EndSection

but I believe there is also a way to have one display be cloned on the
other, if that's what you want. See the config file here (I haven't
tested it):
http://user.cs.tu-berlin.de/~gregorrg/t30/XF86Config-4.xin.mirr.10