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About IMX6Q  kernel 3.10.53 rotate screen issue.

Question asked by li fusong on Sep 9, 2016
Latest reply on Sep 14, 2016 by Joan Xie

echo 1 > sys/class/graphics/fb0/rotate ,will rotate 180 degrees.

and see the define in ipu.h

IPU_ROTATE_NONE = 0,
IPU_ROTATE_VERT_FLIP = 1,
IPU_ROTATE_HORIZ_FLIP = 2,
IPU_ROTATE_180 = 3,
IPU_ROTATE_90_RIGHT = 4,
IPU_ROTATE_90_RIGHT_VFLIP = 5,
IPU_ROTATE_90_RIGHT_HFLIP = 6,
IPU_ROTATE_90_LEFT = 7,

 

write any value of 2 to 7 can't rotate the screen.

how to rotate 90 degrees for fb0.

 

board imx6q  kernel 3.10.53 

android is linux-2.6-imx.git - Freescale i.MX Linux Tree 

 

the screen size is 1024*600

 

and try to rotate the kernel logo with boot args fbcon=rotate:3  will case kernel reset and can't get any debug message.

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