Apple Cinema Display (20-inch): Using with Mac OS 9

The Apple Cinema Display 20-inch feature set is fully supported in Mac OS X. If you wish to use the Apple Cinema Display (20-inch) with Mac OS 9, you can, but some features may not be available.
The Apple Cinema Display (20-inch) system requirements state that it must be used with Mac OS X10.2 or later. When you use this display with Mac OS X and the Classic environment in Mac OS X, the full range of the display's features are available.

When Mac OS 9 is used as the startup system, the display can be used, but some features, including changing the brightness settings or using the launch button to open the Monitors control panel, are not available.

To change the display's brightness, or to make other settings, open the Monitors control panel.

If you have installed an Nvidia graphic adapter you must also install the Mac OS 9 Nvidia software.

Software Software Update Link
Nvidia Driver Update 3.0 v1.1 120110
Nvidia Graphics Firmware Updater 120168

System requirements

A full description and system requirements for the Apple Cinema Display (20-inch) are available on the Apple displays website (http://www.apple.com/displays/).

Published Date: Oct 10, 2016