Am Samstag, den 16.08.2008, 10:12 -0700 schrieb Sean Bruno:
> The desktop area for each monitor, is somehow exceeding the displayable
> area(I have to move the mouse to the edge of the monitor to make the
> desktop scroll over to the rest of the desktop).  This only shows up in
> a dual head configuration.  If I simply comment out the second display,
> my primary display is sized correctly and all is well.  
> ....
> Help?


When I updated to F9 I had some probs with my ati dual head card. My
conf file is:

Section "ServerLayout"
        Identifier     "ATI dual head configuration"
        Screen      0  "Default Screen" 0 0
        InputDevice    "Mouse0" "CorePointer"
        InputDevice    "Keyboard0" "CoreKeyboard"
EndSection

... (modules, keyboard, etc)

Section "Device"

        Identifier      "ATI Radeon"
        Driver          "radeon"
        VendorName      "ATI corp."
        BoardName       "ATI Technologies Inc RV350 AP [Radeon 9600]"
        BusID           "PCI:1:0:0"
        # Option        "AGPFastWrite"  "on"
        # Option                "AccelMethod"  "EXA"
        Option          "Monitor-DVI-0" "Panel-0"
        Option          "Monitor-DVI-1" "Panel-1"
EndSection

Section "Monitor"

        Identifier   "Panel-1"
        VendorName   "Monitor Vendor"
        ModelName    "NEC MultiSync LCD1700NX (Digital)"
        # Comment all HorizSync and VertSync values to use DDC:
        # HorizSync    31.0 - 68.0
        # VertRefresh  56.0 - 75.0
        # DisplaySize  340      270
        Option  "dpms"
#       Option  "LeftOf" "Panel-0"
#       Option  "Ignore" "true"

EndSection

Section "Monitor"

        Identifier   "Panel-0"
        VendorName   "Monitor Vendor"
        ModelName    "NEC MultiSync LCD1700NX (Digital)"
        # Comment all HorizSync and VertSync values to use DDC:
        # HorizSync    31.0 - 68.0
        # VertRefresh  56.0 - 75.0
        Option      "dpms"
        Option  "RightOf" "Panel-1"

EndSection

Section "Screen"
        Identifier "Default Screen"
        Device     "ATI Radeon"
        Monitor    "Panel-1"
        DefaultDepth     24

        SubSection "Display"
                Viewport   0 0
                Depth     24
                # big virtual screen to place the monitors
                Virtual   2560 1024
#               Modes    "1280x1024" "1024x768" "800x600" "640x480"
        EndSubSection

EndSection


Especially important is the "Virtual" option in section "Screen".

You may check for a ~/.gnome2/monitors.xml file and remove / rename it
and check. See https://bugzilla.redhat.com/show_bug.cgi?id=457673 


Peter



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