Reset an 'out of range' second display

Jun 28, '04 10:43:00AM

Contributed by: zed

Ok I'll admit it -- I was messing around on my laptop with a second screen attached, and I set the frequency for the second screen to a value that was out of range for the monitor. The monitor was fine, but the laptop did not realize the that screen was not displaying anything and so would not revert back.

No problem, I thought -- unplug the screen and then plug it back in, and this would reset things and all would be well. But no! The laptop remembered the screen and set it straight back to the undisplayable resolution. Setting it to mirrored and back also did not clear it; neither did a reboot.

To cut the story short ... go to the Displays System Prefs panel and click on the option to show the monitors in the menu bar. Now you can go to the menu bar (on the functional laptop display) and reset the frequency/resolution for the second screen back to something displayable.

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