xrandr issues

[Sriram V]

Hi,
   I am using xorg xserver. i am using a OMAP based board.
   My board is a 640x480 LCD with touch screen support.

  I am trying to rotate the display using xrandr. But xrandr returns error.
  I am also unable to run xtscal.

  Output of my commands are:
   root at omap3:~# xrandr -q
   Screen 0: minimum 480 x 640, current 480 x 640, maximum 480 x 640
   default connected 480x640+0+0 0mm x 0mm
   480x640         0.0*
  root at omap3:~# xtscal
  XCALIBRATE extension missing: Success
root at omap3evm:~# xrandr -o left
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  149 (RANDR)
  Minor opcode of failed request:  2 (RRSetScreenConfig)
  Serial number of failed request:  12
  Current serial number in output stream:  12
root at omap3:~# xrandr -o right
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  149 (RANDR)
  Minor opcode of failed request:  2 (RRSetScreenConfig)
  Serial number of failed request:  12
  Current serial number in output stream:  12
root at omap3:~#


My xorg.conf file at /etc/X11/xorg.conf looks like:

Section "Module"
        Load    "extmod"
        Load    "dbe"
        Load    "glx"
        Load    "freetype"
        Load    "type1"
        Load    "record"
        Load    "dri"
EndSection

Section "Monitor"
        Identifier      "Builtin Default Monitor"
EndSection

Section "Device"
        Identifier      "Builtin Default fbdev Device 0"
        Driver  "omapfb"
EndSection

Section "Screen"
        Identifier      "Builtin Default fbdev Screen 0"
        Device  "Builtin Default fbdev Device 0"
        Monitor "Builtin Default Monitor"
EndSection

Section "ServerLayout"
        Identifier      "Builtin Default Layout"
        Screen  "Builtin Default fbdev Screen 0"
EndSection



Please advice.


Regards,
sriram