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Ubuntu on HP nx7400 doesn't get full res on external LCD

By NaughtyMonkey ·
I have an HP nx7400 with an Intel graphics chip. I have tried every solution that I can find to get the desktop to extend onto my 19" Dell widescreen with only partial success. The recommended res for the laptop monitor is 1280x800 and the Dell is 1600x1200. The Intel chip supports both but the Dell will not go above 1280x800 and the desktop will not extend. I can clone them and of course the res will be the same, but when I try to use just the Dell it will not go any higher on the res either. I have tried many alterations and none will allow the desktop to be extended or allow the Dell to go over 1280x800.

I would appreciate very much any help offered. I really want to run Ubuntu on this laptop but if I can't figure this out I will have to go back to Windows. Everything else work great.

My xorg.conf is below:

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf(5) manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
FontPath "/usr/share/fonts/X11/misc"
FontPath "/usr/share/fonts/X11/cyrillic"
FontPath "/usr/share/fonts/X11/100dpi/:unscaled"
FontPath "/usr/share/fonts/X11/75dpi/:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
FontPath "/usr/share/fonts/X11/100dpi"
FontPath "/usr/share/fonts/X11/75dpi"
# path to defoma fonts
FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
Load "i2c"
Load "bitmap"
Load "ddc"
Load "dri"
Load "extmod"
Load "freetype"
Load "glx"
Load "int10"
Load "vbe"
EndSection

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
Option "Device" "/dev/input/mice"
Option "Protocol" "ImPS/2"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "true"
EndSection

Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
Option "HorizScrollDelta" "0"
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "stylus"
Option "Device" "/dev/input/wacom"
Option "Type" "stylus"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "eraser"
Option "Device" "/dev/input/wacom"
Option "Type" "eraser"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "InputDevice"
Driver "wacom"
Identifier "cursor"
Option "Device" "/dev/input/wacom"
Option "Type" "cursor"
Option "ForceDevice" "ISDV4" # Tablet PC ONLY
EndSection

Section "Device"
Identifier "Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 0"
Driver "i810"
BusID "PCI:0:2:0"
Screen 0
EndSection

Section "Device"
Identifier "Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 1"
Driver "i810"
BusID "PCI:0:2:1"
Screen 1
EndSection

Section "Monitor"
Identifier "Monitor0"
Option "DPMS"
HorizSync 28-64
VertRefresh 43-60
EndSection

Section "Monitor"
Identifier "Monitor1"
Modeline "1680x1050" 146.25 1680 1784 1960 2240 1050 1053 1059 1089
Option "DPMS"
HorizSync 28-64
VertRefresh 43-60
EndSection

Section "Screen"
Identifier "Screen 0"
Device "Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1600x1200" "1280x800"
EndSubSection
SubSection "Display"
Depth 4
Modes "1600x1200" "1280x800"
EndSubSection
SubSection "Display"
Depth 8
Modes "1600x1200" "1280x800"
EndSubSection
SubSection "Display"
Depth 15
Modes "1600x1200" "1280x800"
EndSubSection
SubSection "Display"
Depth 16
Modes "1600x1200" "1280x800"
EndSubSection
SubSection "Display"
Depth 24
Modes "1600x1200" "1280x800"
EndSubSection
EndSection

Section "Screen"
Identifier "Screen 1"
Device "Intel Corporation Mobile 945GM/GMS/940GML Express Integrated Graphics Controller 1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1680x1050" "1280x800"
EndSubSection
EndSection


#Section "ServerLayout"
# Identifier "Default Layout"
# Screen "Default Screen"
# InputDevice "Generic Keyboard"
# InputDevice "Configured Mouse"
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"
# InputDevice "eraser" "SendCoreEvents"
# InputDevice "Synaptics Touchpad"
#EndSection


#Section "ServerLayout"
# Identifier "External Layout"
# Screen "External Screen"
# InputDevice "Generic Keyboard"
# InputDevice "Configured Mouse"
# InputDevice "stylus" "SendCoreEvents"
# InputDevice "cursor" "SendCoreEvents"
# InputDevice "eraser" "SendCoreEvents"
# InputDevice "Synaptics Touchpad"
#EndSection

Section "ServerLayout"
Identifier "Dual Layout"
Screen 0 "Screen 0"
Screen 1 "Screen 1" RightOf "Screen 0"
InputDevice "Generic Keyboard"
InputDevice "Configured Mouse"
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
InputDevice "Synaptics Touchpad"
EndSection

Section "DRI"
Mode 0666
EndSection

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