I have a dual-head setup: a "main" screen at 1920X1080, and a "secondary" screen to the right of it, rotated at 90 degrees counter-clockwise. Until Friday (26.10.2012), everything was working fine, however on that day an update has caused the rotation settings in xorg.conf to be ignored.
Specifically, I had used the rotation attribute (like in this question). Also, since I have Xinerama enabled, I don't have access to xrandr and the corresponding GUI settings (due to this bug, I think).
What should I change in my xorg.conf to have the second screen rotated again?
Here's my current xorg.conf (the third screen is a monitor built in into the laptop, disabled since my video card can only support 2 outputs). I haven't removed any comments to provide a possible forensic trace.
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 304.37 (buildd@allspice) Sun Sep 9 05:59:26 UTC 2012
# commented out by update-manager, HAL is now used and auto-detects devices
# Keyboard settings are now read from /etc/default/console-setup
#Section "InputDevice"
#
# # generated from default
# Identifier "Mouse0"
# Driver "mouse"
# Option "Protocol" "auto"
# Option "Device" "/dev/psaux"
# Option "Emulate3Buttons" "no"
# Option "ZAxisMapping" "4 5"
#EndSection
# commented out by update-manager, HAL is now used and auto-detects devices
# Keyboard settings are now read from /etc/default/console-setup
#Section "InputDevice"
#
# # generated from default
# Identifier "Keyboard0"
# Driver "kbd"
#EndSection
Section "ServerLayout"
# commented out by update-manager, HAL is now used and auto-detects devices
# Keyboard settings are now read from /etc/default/console-setup
# InputDevice "Keyboard0" "CoreKeyboard"
# commented out by update-manager, HAL is now used and auto-detects devices
# Keyboard settings are now read from /etc/default/console-setup
# InputDevice "Mouse0" "CorePointer"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "true"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
# Removed Option "Xinerama" "0"
# Removed Option "Xinerama" "1"
# Removed Option "Xinerama" "0"
Identifier "Layout0"
Screen 0 "Screen0" 1920 0
Screen 1 "Screen1" LeftOf "Screen0"
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "1"
EndSection
Section "Files"
EndSection
Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"
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 "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Samsung SyncMaster"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
Option "DPMS"
EndSection
Section "Monitor"
Identifier "Monitor2"
VendorName "Unknown"
ModelName "Samsung SMBX2235"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
EndSection
Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "Samsung SMBX2235"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
EndSection
Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 330M"
Option "RandRRotation" "on"
BusID "PCI:2:0:0"
Screen 0
EndSection
Section "Device"
Identifier "Device2"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 330M"
Option "RandRRotation" "on"
BusID "PCI:2:0:0"
Screen 2
EndSection
Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce GT 330M"
Option "RandRRotation" "on"
BusID "PCI:2:0:0"
Screen 1
EndSection
Section "Screen"
# Removed Option "TwinView" "1"
# Removed Option "metamodes" "DFP-0: 1366x768_60 +277+1080, DFP-1: 1920x1080 +0+0; DFP-0: 1024x768 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 1024x768i +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 960x540 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 840x525 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 832x624 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x600 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x600_75 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x600_72 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x600_60 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x600_56 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 800x512 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 720x450 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 720x400 +0+1080, DFP-1: nvidia-auto-select +0+0; DFP-0: 700x525 +0+1080, DFP-1: nvidia-auto-select +0+0"
# Removed Option "TwinView" "0"
# Removed Option "TwinViewXineramaInfoOrder" "CRT-0"
# Removed Option "metamodes" "CRT: 1440x900 +0+0"
# Removed Option "TwinView" "1"
# Removed Option "metamodes" "DFP-0: nvidia-auto-select +277+1080, DFP-1: 1920x1080 +0+0; DFP-1: 1024x768i +0+0; DFP-1: 960x540 +0+0; DFP-1: 840x525 +0+0; DFP-1: 832x624 +0+0; DFP-1: 800x600 +0+0; DFP-1: 800x600_75 +0+0; DFP-1: 800x600_72 +0+0; DFP-1: 800x600_60 +0+0; DFP-1: 800x600_56 +0+0; DFP-1: 800x512 +0+0; DFP-1: 720x450 +0+0; DFP-1: 720x400 +0+0; DFP-1: 700x525 +0+0"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinViewXineramaInfoOrder" "DFP-1, CRT-0"
Option "TwinView" "0"
Option "rotate" "cw"
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "CRT-0"
Option "metamodes" "CRT: 1680x1050 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "DFP-1: 1920x1080 +0+0"
Identifier "Screen2"
Device "Device2"
Monitor "Monitor2"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-1, CRT-0"
Option "metamodes" "DFP-1: 1920x1080 +0+0; DFP-1: nvidia-auto-select +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Screen"
# Removed Option "metamodes" "CRT: 1440x900 +0+0"
# Removed Option "TwinViewXineramaInfoOrder" "CRT-0"
# Removed Option "metamodes" "DFP-0: 1366x768_60 +0+0; DFP-0: 1024x768 +0+0; DFP-0: 1024x768i +0+0; DFP-0: 960x540 +0+0; DFP-0: 840x525 +0+0; DFP-0: 832x624 +0+0; DFP-0: 800x600 +0+0; DFP-0: 800x600_75 +0+0; DFP-0: 800x600_72 +0+0; DFP-0: 800x600_60 +0+0; DFP-0: 800x600_56 +0+0; DFP-0: 800x512 +0+0; DFP-0: 720x450 +0+0; DFP-0: 720x400 +0+0; DFP-0: 700x525 +0+0"
# Removed Option "metamodes" "DFP-1: 1920x1080 +0+0; DFP-1: 1024x768i +0+0; DFP-1: 960x540 +0+0; DFP-1: 840x525 +0+0; DFP-1: 832x624 +0+0; DFP-1: 800x600 +0+0; DFP-1: 800x600_75 +0+0; DFP-1: 800x600_72 +0+0; DFP-1: 800x600_60 +0+0; DFP-1: 800x600_56 +0+0; DFP-1: 800x512 +0+0; DFP-1: 720x450 +0+0; DFP-1: 720x400 +0+0; DFP-1: 700x525 +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "TwinViewXineramaInfoOrder" "DFP-1, CRT-0"
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-1"
Option "metamodes" "DFP-1: 1920x1080 +0+0; DFP-1: 800x600 +0+0; DFP-1: 800x600_75 +0+0; DFP-1: 800x600_72 +0+0; DFP-1: 800x600_60 +0+0; DFP-1: 800x600_56 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection
Section "Extensions"
Option "Composite" "Disable"
EndSection
Well, in the end, the answer was stupidly simple.
cp /etc/X11/xorg.conf ~/xorg.backup
sudo rm /etc/X11/xorg.conf
sudo shutdown -r now
And, after this, I can change the screen layout normally.
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