Solved! Lenovor r400 monitor no display fully open, have display when half open

May 21, 2020
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I have a lenovo r400 thinkpad laptop. When i press the power button (monitor fully opened up), there is no display and no LED lights. But when i position the monitor half opened, display appears as well as the LED lights. Can you help me how to fix it? Thanks in advance.
 
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