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DM3730 FB rotate 90, 270 problem

anil kolli
Intellectual 400 points
Other Parts Discussed in Thread: DM3730

Hi All

I am using DM3730, linux-2.6.32 kernel.

I am using 800*480 LCD. I am trying to use the SYSFS provided in the kernel. I am getting the following errors.

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root@dm37x-evm:~# echo 1 > /sys/class/graphics/fb0/rotate

detected fb_set_par error, error code: -22

root@dm37x-evm:~# echo 0 > /sys/class/graphics/fb0/rotate

0
root@dm37x-evm:~# echo 2 > /sys/class/graphics/fb0/rotate
omapdss DISPC error: GFX_FIFO_UNDERFLOW, disabling GFX

root@dm37x-evm:~#
root@dm37x-evm:~# echo 0 > /sys/class/graphics/fb0/rotate


0
root@dm37x-evm:~#

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Can someone help me here?

Thanks & Regards

Anil.