I damaged my laptop screen but am already currently saving up for a new laptop, so I didn't want to buy a new screen. What I did instead was use a usb monitor I had at my house as a secondary display. I have the monitor set in the control panel as the primary display and have it set to only display on the monitor, not on the laptop screen.

This works reasonably well, however every time I close and reopen my laptop lid it turns the laptop's display back on. Is there anyway to prevent this?


On BIOS there should be a setting to choose External as the starting display output.

  • I can only see the top left corner of my laptop screen so I can't use BIOS
    – Grant
    Jun 15 '12 at 14:27
  • Ack.. perhaps your vendor released an application that can change BIOS settings through Windows? Jun 15 '12 at 14:42

Indeed, this is quite an old Windows bug which hasn't yet been fixed. Check my dirty solution of this bug here.

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