XFCE screen rotate only choice normal

Please advice me with the XFCE settings. I have installed linuxcnc 2.7. Since I have a monitor placed "upside down" i need rotate the screen.
Unfortunately, in the monitor settings is only a possibility: normal. I also tried to screen rotate in the command line using xrandr. Not successfully.
jaro@CNC:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1600 x 900, maximum 1600 x 900
default connected 1600x900+0+0 0mm x 0mm
1600x900 0.0*
1024x768 0.0
800x600 0.0
640x480 0.0
jaro@CNC:~$

jaro@CNC:~$ xrandr --output default --rotate inverted
xrandr: output default cannot use rotation "inverted" reflection "none"
jaro@CNC:~$

Connection VGA, Intel® HD Graphics, Intel® Celeron® Processor J1900

Thanks

Does gives the same result?

Which distibution/vesrion are you running? (Debian Wheezy?)

I have installed Live/Install Image 2.7.3.

jaro@CNC:~$ xrandr --rotate left
usage: xrandr [options]
where options are:
-display <display> or -d <display>
-help
-o <normal,inverted,left,right,0,1,2,3>
or --orientation <normal,inverted,left,right,0,1,2,3>
-q or --query
-s <size>/<width>x<height> or --size <size>/<width>x<height>
-r <rate> or --rate <rate> or --refresh <rate>
-v or --version
-x (reflect in x)
-y (reflect in y)

etc.

That would be debian Wheezy then...

Correct syntax should be

I can try tomorrow on a wheezy box...

jaro@CNC:~$ 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: 14
Current serial number in output stream: 14

Actually, the problem is that most probably the driver does not support rotation...

If you do:
These J1900 boards are newer than Wheezy, so the drivers are a bit outdated.
It might work on Jessie (with the latest rtai kernel ), but there is no ready-to-use install CD for this...