I have a dual-monitor setup using the proprietary Nvidia drivers. It appears that the correct settings are used when the OS boots (it appears to be fine at the login prompt), but when I login, the settings for my dual montior are reset and the position of the second monitor is incorrect (it should be set to the right of my main monitor).
I removed xorg.conf from the /etc/X11 directory and AFAIK the only one on the system is in /usr/share/X11/xorg.conf.d/12-xorg.conf (I checked /var/log/Xorg.0.log and it says that it is using /usr/share/X11/xorg.conf.d/)
Here are the settings:
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 310.14 (buildd@aatxe) Tue Oct 16 22:21:09 UTC 2012
Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "DELL U2311H"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 76.0
Option "DPMS"
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 8800 GTS 512"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-0"
Option "MetaModeOrientation" "CRT-1 RightOf DFP-0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
System info:
- Xubuntu 12.04
- Nvidia proprietary driver version 310.14
- X.Org X Server 1.11.3
Best Answer
The following fixed the issue:
I modified the xorg config file MetaModeOrientation options to the following:
Option "MetaModeOrientation" "CRT RightOf DFP"