Hello!

I have a problem to setup Xinerama with two matrox pci-graphic-cards
(one with 4 MB Graphics Memory and one with 2). When I start X with
the Xinerama-Option commented out, everything starts fine (I have my
windowmanager on the big screen and a grey second screen). But when I
use Xinerama, X refuses to start and I get the error-message in the logs:

(EE) MGA(0): Need at least 7680 kB video memory at this resolution,
bit depth
(EE) MGA(1): Need at least 4608 kB video memory at this resolution,
bit depth

Is it not possible to use Xinerama with 4 and 2 MB? But why does then
everything work if Xinerama is disabled?
Or am I doing something wrong?

My XF86Config-4 is attached to this mail.

Greetings, Florian.
Section "ServerLayout"
        Identifier     "DualLayout"
        Screen "Screen0" LeftOf "Screen1"
        Screen "Screen1"
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
        Option "Xinerama"
EndSection

Section "Files"
        FontPath     "tcp/192.168.1.1:7100"
EndSection

Section "Module"
        Load  "GLcore"
        Load  "dbe"
#       Load  "dri"
#       Load  "dga"
        Load  "extmod"
        Load  "glx"
        Load  "pex5"
        Load  "record"
        Load  "xie"
        Load  "v4l"
EndSection

Section "InputDevice"
        Identifier  "Keyboard0"
        Driver      "keyboard"
        Option      "Protocol" "Standard"
        Option      "XkbLayout" "us"
        Option      "XkbRules" "xfree86"
        Option      "XkbVariant" "nodeadkeys"
EndSection

Section "InputDevice"
        Identifier  "Mouse0"
        Driver      "mouse"
        Option      "Protocol" "imps/2"
        Option      "Device" "/dev/psaux"
        Option      "ZAxisMapping" "4 5"
        Option      "Buttons" "3"
EndSection

Section "Monitor"
        Identifier   "Samsung"
        VendorName   "Samsung"
        ModelName    "SyncMaster 900SL"
        HorizSync    30.0 - 96.0
        VertRefresh  50.0 - 160.0
        Option       "DPMS"
EndSection

Section "Monitor"
        Identifier   "Samtron"
        VendorName   "Samtron"
        ModelName    "76E"
        HorizSync    30.0 - 70.0
        VertRefresh  50.0 - 160.0
        Option       "DPMS"
EndSection

Section "ServerFlags"
        #Option      "SuspendTime" "5"
        Option      "OffTime" "15"
EndSection

Section "Device"
        Identifier  "Card_1"
        Driver      "mga"
        BusID       "PCI:0:6:0"
EndSection

Section "Device"
        Identifier  "Card_2"
        Driver      "mga"
        BusID       "PCI:0:7:0"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Card_1"
        Monitor    "Samsung"
        DefaultDepth 16

        SubSection "Display"
                Modes "1280x1024" "800x600"
                Depth     16
        EndSubSection
EndSection

Section "Screen"
        Identifier "Screen1"
        Device     "Card_2"
        Monitor    "Samtron"
        DefaultDepth 16

        SubSection "Display"
                Modes "1024x768"
                Depth     16
        EndSubSection
EndSection

Section "DRI"
EndSection

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