Notebook LCD Powers Off During Normal Use

LCD powers Off during use

You may notice that your LCD screen powers off or goes into a standby/suspend or hibernate state.

Check for these possible causes:

• Magnetic bracelets or Jewellery
• Stacking of notebook systems on top of each other
• Electrical devices in close proximity
• Other magnetic sources

On many laptops there is a magnet located in the LCD bezel (A) (usually the top-right corner). When the screen is closed, this causes a reed switch in the palmrest (B) to close, completing a circuit. This activates whatever action your operating system has set for when the lid is closed. Commonly, turns off the LCD or sends the system into a low power standby mode.

Figure 1: Diagram shows approximate locations of LCD reed switch and magnet that can create a no video scenario.