rotate display

[Neil Whelchel]

This has been a major thorn in my side with Nvidia. Their driver does not 
support rotating a single display, it is all or nothing.
The work-around is to use Xinerama. I have included the related parts of my 
config file, monitor 0 is normal and monitors 1 and 2 are rotated.
As far as I can tell, both Damage and Composite extensions are not working 
with Xinerama, but I left the related configuration in the config file, so that 
if this ever changes, the configuration may be valid. If you wish to use 
rotation that differs between monitors along with Damage and Composite, you are 
likely out of luck with the Nvidia driver, and my talks with Nvidia revealed 
that they are not likely to fix this any time in the near future.
-Neil-

Section "ServerLayout"
    Identifier     "Layout0"
    Screen      0  "Screen0" 0 500
    Screen      1  "Screen1" 1920 0
    Screen      2  "Screen2" 3120 120
    Option         "Xinerama" "1"
EndSection

Section "Device"
        Identifier  "Device0"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce GT 440"
        Driver      "nvidia"
        BusID       "PCI:1:0:0"
        Option     "backingstore" "true"
        Option      "DamageEvents" "True"
        Option "TripleBuffer" "True"
        Option  "AllowGLXWithComposite"  "true"
        Option          "RenderAccel"           "true"
        Screen          0
EndSection


Section "Device"
        Identifier  "Device1"
        VendorName     "NVIDIA Corporation"
        BoardName      "GeForce GT 440"
        Driver      "nvidia"
        BusID       "PCI:1:0:0"
        Option     "backingstore" "true"
        Option      "DamageEvents" "True"
        Option "TripleBuffer" "True"
        Option  "AllowGLXWithComposite"  "true"
        Option          "RenderAccel"           "true"
        Option   "Rotate"   "left"
        Screen          1
EndSection


Section "Device"
    Identifier     "Device2"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce 9500 GT"
    BusID          "PCI:2:0:0"
    Option         "backingstore" "true"
    Option      "DamageEvents" "True"
    Option "TripleBuffer" "True"
    Option  "AllowGLXWithComposite"  "true"
    Option              "RenderAccel"           "true"
    Option   "Rotate"  "left"
    Screen          0
EndSection



On Thursday, November 03, 2011 16:45:11 Gergely Buday wrote:
> Hi,
> 
> I have my X display as 2560x1024, two monitors in one, so I cannot
> rotate one of them. How I should modify my xorg.conf so that I can
> rotate the left one?
> 
> - Gergely
> 
> # nvidia-xconfig: X configuration file generated by nvidia-xconfig
> # nvidia-xconfig:  version 270.41.06  (mockbuild@)  Sun May  1 14:42:45 EDT
> 2011
> 
> 
> Section "ServerLayout"
> 
>  #Screen1 at the right of Screen0
>     Identifier     "DualSreen"
>     Screen      0  "Screen0" 0 0
>     Screen      1  "Screen1" RightOf "Screen0"
>     InputDevice    "Keyboard0" "CoreKeyboard"
>     InputDevice    "Mouse0" "CorePointer"
>     Option         "TwinView" "1" #To move windows between screens
> EndSection
> 
> Section "InputDevice"
> 
>     # generated from data in "/etc/sysconfig/keyboard"
>     Identifier     "Keyboard0"
>     Driver         "keyboard"
>     Option         "XkbLayout" "us"
>     Option         "XkbModel" "pc105"
> EndSection
> 
> Section "InputDevice"
> 
>     # generated from default
>     Identifier     "Mouse0"
>     Driver         "mouse"
>     Option         "Protocol" "auto"
>     Option         "Device" "/dev/input/mice"
>     Option         "Emulate3Buttons" "no"
>     Option         "ZAxisMapping" "4 5"
> EndSection
> 
> Section "Monitor"
>     Identifier     "Monitor0"
>     VendorName     "Unknown"
>     ModelName      "Unknown"
>     HorizSync       28.0 - 33.0
>     VertRefresh     43.0 - 72.0
>     Option         "DPMS"
> EndSection
> 
> Section "Monitor"
>     Identifier     "Monitor1"
>     HorizSync       28.0 - 33.0
>     VertRefresh     43.0 - 72.0
>     Option         "Enable" "true"
> EndSection
> 
> Section "Device"
>     Identifier     "Videocard0"
>     Driver         "nvidia"
> EndSection
> 
> Section "Screen"
>     Identifier     "Screen0"
>     Device         "Videocard0"
>     Monitor        "Monitor0"
>     DefaultDepth    24
>     Option         "TwinView" "True"
>     SubSection     "Display"
>         Depth       24
>         Modes      "1280x800_75.00"
>     EndSubSection
> EndSection
> 
> Section "Screen"
>     Identifier     "Screen1"
>     Device         "Videocard0"
>     Monitor        "Monitor1"
>     DefaultDepth    24
>     Option         "TwinView" "True"
>     SubSection     "Display"
>         Depth       24
>     EndSubSection
> EndSection
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