I was able to generate a modeline for my 1440x900 flat panel laptop display. How do I insert it into my XF86Config-4 file so that my laptop can finally have a good resolution? As a second note, why is it that once my new nvidia drivers were installed, the resolution won't go above 1024x768? Before when I used the vesa drivers, I could at least get 1280x1024. Any help would be great. I don't want to go back to windows in order to get a good resolution.

Here's my XF86Config-4 file as you can see the modeline for the 1440x900 resolution is already in there but it doesn't work:

# File generated by XFdrake.

# **********************************************************************
# Refer to the XF86Config man page for details about the format of
# this file.
# **********************************************************************

Section "Files"
# Multiple FontPath entries are allowed (they are concatenated together)
# By default, Mandrake 6.0 and later now use a font server independent of
# the X server to render fonts.
FontPath "unix/:-1"
EndSection

Section "ServerFlags"
#DontZap # disable <Crtl><Alt><BS> (server abort)
#DontZoom # disable <Crtl><Alt><KP_+>/<KP_-> (resolution switching)
AllowMouseOpenFail # allows the server to start up even if the mouse doesn't work
EndSection

Section "Module"
Load "dbe" # Double-Buffering Extension
Load "v4l" # Video for Linux
Load "extmod"
Load "type1"
Load "freetype"
Load "glx" # 3D layer
EndSection

Section "InputDevice"
Identifier "Keyboard1"
Driver "Keyboard"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
Option "XkbCompat" ""
Option "XkbOptions" ""
EndSection

Section "InputDevice"
Identifier "Mouse1"
Driver "mouse"
Option "Protocol" "PS/2"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons"
Option "Emulate3Timeout" "50"
EndSection

Section "Monitor"
Identifier "monitor1"
HorizSync 31.5-57.0
VertRefresh 60

# Sony Vaio C1(X,XS,VE,VN)?
# 1024x480 @ 85.6 Hz, 48 kHz hsync
ModeLine "1024x480" 65.00 1024 1032 1176 1344 480 488 494 563 -hsync -vsync

# 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

Modeline "1440x900@60" 108.84 1440 1472 1880 1912 900 918 927 946
EndSection

Section "Device"
Identifier "device1"
Driver "nvidia"
Option "DPMS"
EndSection

Section "Screen"
Identifier "screen1"
Device "device1"
Monitor "monitor1"
DefaultColorDepth 24

Subsection "Display"
Depth 8
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection

Subsection "Display"
Depth 15
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection

Subsection "Display"
Depth 16
Modes "1280x1024" "1280x960" "1152x864" "1024x768" "800x600" "640x480"
EndSubsection

Subsection "Display"
Depth 24
Modes "1440x900" "1280x1024" "1024x768"
EndSubsection
EndSection

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

Well, I don't mean to ramble but it seems the hsync is out of range for anything higher than 1024x768. Windows can display 1440x900 and the hsync for that rez at 60Hz is about 56.7kHz. The EDID-specified sync for my display is 55kHz. I tried to tell Xwindows to use a hsync range of 31.5-60kHz but it seems that because of EDID it ignores my setting and falls back to a sync range of 55Khz max which won't display 1440x900. Please help, is there a way to turn EDID off so that Xwindows uses my settings instead?