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  1. Bug #239479
  2. Comment #11

Comment 11 for bug 239479

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H.-Dirk Schmitt (dirk-computer42) wrote : Re: Support for console rotation with fbcon in linux-image

Current status for precise: Bug still in default and quantal-backport kernel.

From the fbcon documentation:

. fbcon=rotate:<n>

        This option changes the orientation angle of the console display. The
        value 'n' accepts the following:

              0 - normal orientation (0 degree)
              1 - clockwise orientation (90 degrees)
              2 - upside down orientation (180 degrees)
              3 - counterclockwise orientation (270 degrees)

        The angle can be changed anytime afterwards by 'echoing' the same
        numbers to any one of the 2 attributes found in
         /sys/class/graphics/fbcon

                rotate - rotate the display of the active console
                rotate_all - rotate the display of all consoles

        Console rotation will only become available if Console Rotation
        Support is compiled in your kernel.

        NOTE: This is purely console rotation. Any other applications that
        use the framebuffer will remain at their 'normal'orientation.
        Actually, the underlying fb driver is totally ignorant of console
        rotation.