Macintosh LC 575: Proper Way to Awaken Dimmed Display
This article discusses the proper method of waking up the Macintosh LC 575 after the screen has dimmed.
It is best to awaken the computer by moving the mouse or pressing a key on the keyboard rather than pressing the mouse button.
Pressing the mouse button (without moving the mouse or touching the keyboard) to wake up the computer can cause the computer to fail to respond (freeze).