Disable iBook LCD display

Jun 23, '04 08:54:00AM

Contributed by: Anonymous

While trying to patch my 600mhz dual USB iBook to run in dual display mode /clamshell, I ran across this by accident. Apparently, it is possible to use only an external display at a much higher resolution than available to the iBook's built-in display. I have only tried this under 10.2, so i'm not sure if it works under panther. Here's how:

  1. Apply iBook patch with 00000008 instead of 00000000
  2. Download Sleepless version 1.5
  3. Close the iBook display so it enters sleep-mode
  4. Wake the iBook from sleep via an external keyboard/mouse.
  5. Open Sleepless 1.5, and toggle 'Allow sleep with lid closed' to false, and toggle 'Allow display to sleep' to true.
  6. Open the Displays panel under system preferences, and set your display to the desired resolution (mine is 1280x1024).
  7. Open the iBook's lid.
The Displays panel now only detects my external display, and runs it perfectly as my primary display. This should resolve any heat-dissipation issues that result from running the iBook in clamshell mode.

[robg adds: We covered the iBook dual monitor patch in a previous hint; please read the hint and comments, as well as the cautions on the linked patch page, before you try the patch.]

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