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When testing out my recently purchased Dell Inspiron 14 (7420) 2-in-1, I found that the screen did not autorotate when in tent or tablet mode. The keyboard also doesn't deactivate when the lid of the computer is pushed more than 180 degrees back (tablet, tent, media modes). Right now, tablet mode only activates when my screen is completely pushed back and flat. Otherwise, the keyboard always activates and causes keys to be randomly pressed. Is this a software issue, or is the computer just incapable of this? 
Dell Inspiron 14 (7420) 2-in-1 cannot autorotate or disable physical keyboard