Lenovo LXH-GJ17L3 - Manual (Page 15)

ERROR MESSAGE & POSSIBLE SOLUTION
NO SIGNAL INPUT
1. The computer is switched off.
2. The computer is dormancy.
CABLE NOT CONNECTED :
1. Check that the signal-cable is properly connected, If the connector is
loose, tighten the connector’s screws.
2. Check the signal-cable’s connection pins for damage.
INPUT THE RESOLUTION OUT OF THE RANGE:
Your computer has been set to unsuitable display mode, Set the computer to
display mode given in the following table.
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