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D620 - prevent screen blanking during install


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While installing Snow Leopard on my D620/Nvidia, the screen eventually goes black during the install process. If I keep the mouse/keyboard active at regular intervals, this doesn't happen, leading me to believe it's a monitor auto-off screen saver or power saver.


Is there a way to prevent LCD blanking during the install process?


I'm installing from a USB flash drive, per http://www.osxlatitude.com/creating-a-usb-pen-with-osx-installation-2/

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