iBook (Dual USB): External Monitor Flickers at 1024 by 768 Resolution

  • Last Modified: October 04, 2008
  • Article: TA27302
  • Old Article: 88200
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This document describes an issue with using external non-DDC monitors with iBook (Dual USB) computers, and provides a workaround.

Products Affected

iBook

Symptom

An external monitor connected to the computer flickers when used at 1024 by 768 resolution.


Solution

To avoid the flicker:
  • Use a monitor with a Display Data Channel (DDC). Some earlier monitors may not have this feature.
  • Choose a smaller resolution in the Monitors control panel, or the Monitor Resolution portion of the Control Strip.
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