Configuring xorg for an LG L226WTY-BF
NVidia users will need a recent NVidia driver (ie newer than x86-1.0-9639; I successfully used x86-177.80)
The changes you want to make in xorg.conf are:
Section "Monitor"
Identifier "Monitor0"
VendorName "LG Electronics"
ModelName "Flatron L226WTY-BF"
HorizSync 28.0 - 83.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
and
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1680x1050" "1400x1050" "1280x1024" "1280x960" "1024x768" "800x600" "640x480"
EndSubSection
EndSection