Setting up my screen in ubuntu

I followed these instructions, but found some additional xrandr stuff helpful too

I have a nVidia FX5200 with TV-in and a Sony SDM HS75B.  Running get-edid indicates that I have a problem:

VBE/DDC service about to be called
        Read EDID


        Performing real mode VBE call
        Interrupt 0x10 ax=0x4f15 bx=0x1 cx=0x0
        Function supported
        Call failed


The EDID data should not be trusted as the VBE call failed
EDID claims 255 more blocks left
EDID blocks left is wrong.
Your EDID is probably invalid.

As a result:

$ xrandr -q
Screen 0: minimum 320 x 240, current 800 x 600, maximum 800 x 600
default connected 800x600+0+0 0mm x 0mm
   800x600        60.0*    56.0
   640x480        60.0
   400x300        60.0     56.0
   320x240        60.0

I ended up using the xorg.conf file from Mandriva, which does not see to worry about EDID ... fortunately.

# File generated by XFdrake (rev 256990)


# **********************************************************************
# Refer to the xorg.conf man page for details about the format of
# this file.
# **********************************************************************


Section "ServerFlags"
    #DontZap # disable (server abort)
    AllowMouseOpenFail # allows the server to start up even if the mouse does not work
    #DontZoom # disable / (resolution switching)
EndSection


Section "Module"
    Disable "dri"
    Load "dbe" # Double-Buffering Extension
    Load "v4l" # Video for Linux
    Load "extmod"
    Load "glx" # 3D layer
EndSection


Section "InputDevice"
    Identifier "Keyboard1"
    Driver "kbd"
    Option "XkbModel" "pc105"
    Option "XkbLayout" "be"
    Option "XkbOptions" "compose:rwin"
EndSection


Section "InputDevice"
    Identifier "Mouse1"
    Driver "mouse"
    Option "Protocol" "ExplorerPS/2"
    Option "Device" "/dev/input/mice"
EndSection


Section "Monitor"
    Identifier "monitor1"
    VendorName "Generic"
    ModelName "1024x768 @ 60 Hz"
    HorizSync 31.5-48.0.5
    VertRefresh 50.0-70.0
    
    # TV fullscreen mode or DVD fullscreen output.
    # 768x576 @ 79 Hz, 50 kHz hsync
    ModeLine "768x576"     50.00  768  832  846 1000   576  590  595  630
    
    # 768x576 @ 100 Hz, 61.6 kHz hsync
    ModeLine "768x576"     63.07  768  800  960 1024   576  578  590  616
EndSection


Section "Device"
    Identifier "device1"
    VendorName "nVidia Corporation"
    BoardName "NVIDIA GeForce FX series"
    Driver "nvidia"
    Option "DPMS"
    Option "DynamicTwinView" "false"
    Option "AddARGBGLXVisuals"
EndSection


Section "Screen"
    Identifier "screen1"
    Device "device1"
    Monitor "monitor1"
    DefaultColorDepth 24
    
    Subsection "Display"
        Depth 8
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
    
    Subsection "Display"
        Depth 15
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
    
    Subsection "Display"
        Depth 16
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
    
    Subsection "Display"
        Depth 24
        Modes "1024x768" "832x624" "800x600" "640x480" "480x360" "320x240"
    EndSubsection
EndSection


Section "ServerLayout"
    Identifier "layout1"
    InputDevice "Keyboard1" "CoreKeyboard"
    InputDevice "Mouse1" "CorePointer"
    Screen "screen1"
EndSection