Here's my xorg.conf interesting sections:
-------
# First define the video devices. you need to define a different one for
# each screen, even if they are on the same video card

Section "Device"
        Identifier      "I855GM-CRT"
        Driver          "i810"
        BusID           "PCI:0:2:0"
# the following line is very important for using two monitors on the
# same video card. each device need to be specified a screen
# number.
        Screen          1
        Option          "MonitorLayout" "CRT"
        Option          "FlipPrimary"   "true"
        Option          "DevicePresence"        "true"
        Option          "DRI"                   "false"
EndSection
Section "Device"
        Identifier      "I855GM-CRT"
        Driver          "i810"
        BusID           "PCI:0:2:0"
        Screen          1
        Option          "MonitorLayout" "CRT"
        Option          "FlipPrimary"   "true"
        Option          "DevicePresence"        "true"
        Option          "DRI"                   "false"
EndSection

#Now define the monitors, again one for each monitor.

        # EDID version 1 revision 3
Section "Monitor"
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fc
        Identifier "LCD Monitor"
        VendorName "AUO"
        ModelName "B140EW01V0"
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fc
        # DPMS capabilities: Active off:no  Suspend:no  Standby:no

        Mode    "1280x768"      # vfreq 59.994Hz, hfreq 49.375kHz
                DotClock        71.100000
                HTimings        1280 1296 1408 1440
                VTimings        768 769 772 823
                Flags   "-HSync" "-VSync"
        EndMode
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fe
        # Block type: 2:0 3:fc
EndSection
Section "Monitor"
        Identifier  "CRT Monitor"
        HorizSync       30.0-50.0
#       VertRefresh     59.94
#    Modeline "800x600"   50.00   800  800  800  800   600  600  600  600
EndSection

# finally define a screen for each monitor, a screen uses both
# the previously defined video device and monitor.

Section "Screen"
        Identifier      "LCD Screen"
        Device          "I855GM-LCD"
        Monitor         "LCD Monitor"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1280x768" "1024x768" "800x600" "640x480"
        EndSubSection
EndSection
Section "Screen"
        Identifier      "CRT Screen"
        Device          "I855GM-CRT"
        Monitor         "CRT Monitor"
        DefaultDepth    24
        SubSection "Display"
                Depth           24
                Modes           "1024x768" "800x600" "640x480"
        EndSubSection
EndSection

# in the serverlayout, you can use the screens together and define
# how they are placed.

Section "ServerLayout"
        Identifier      "LCDnCRT"
        Screen          "LCD Screen"
        Screen          "CRT Screen" RightOf "LCD Screen"
        InputDevice     "Generic Keyboard"
        InputDevice     "Generic Mice"
        InputDevice     "Synaptics" "CorePointer"
EndSection

About Xinerama, I tried it again and I found out the gnome WM has
improved and it can now maximize to a single screen. there are still
problems like ignoring the docked bar when maximizing, but I guess the
flexibility is much better than using dual head without xinerama
(where you can't move applications from one screen to another).

Haggai

On 10/5/05, Oded Arbel <[EMAIL PROTECTED]> wrote:
> On Tuesday, 4 בOctober 2005 22:05, Haggai Eran wrote:
> > I'm actually running a single X server with the two screens. (It's a
> > laptop with an LCD panel and an external CRT screen).
>
> Can you please show us your X configuration for this setup ? I've tried
> in the past to have multiple screens using a laptops external VGA
> output as an additional screen, but without success.
>
> --
> Oded
>
> ::..
> Reality is the #1 cause of insanity among those who are in contact with
> it!
>         -- Dave Cleveland
>

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