new discovery about the screen upside down's problem

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http://forum.xda-developers.com – well this is my first thread here. i just want share something here and if my bad english can't express what I mean and make some guys not happy sorry about that.... ok let's back to the topic.i have met much more srceen upside down's problem in different rom with different kernel and want solve the problem but cannot becase of my limited skills. but today i find a the min cpu frequency will make the sreen different. that is: if i chose the min cpu frequency at 192 MHz and meet the screen upside down very frequently. the default min cpu frequency is 268 MHz and meet the screen upside down (HowTos)