Using Power Management
Considerations for Suspend Mode
Consider the following before using suspend mode:
The computer can enter suspend mode when used with the
following operating systems:
– OS/2 Warp.
– DOS Version 7.0.
– Microsoft Windows Version 3.11 with DOS Version 7.0.
– Microsoft Windows 95.
– Microsoft Windows NT.
Important
When you use Windows Version 3.11, ensure that Advanced
Power Management (APM) is installed according to the
instructions in “Installing Microsoft Windows Version 3.11” on
page 123.
Attached devices, such as a printer or a serial device, stop
running when the computer enters suspend mode. When you
resume normal operation, the output might differ from what you
expect, because the device might be reset or lose its
configuration settings.
Sometimes you might want to use the computer with the LCD
closed — for example, when an external monitor and a keyboard
are used. In such a case, turn on the computer with the LCD
closed or use the ThinkPad Features program to set the
computer to not enter suspend mode when the LCD is closed.
When a power-on password is set and the computer resumes
normal operation by the ThinkPad Features timer or an incoming
call, only a blank screen is displayed. To display a power-on
password prompt, press any key or move your pointing device.
Chapter 4. Using Battery Power 67
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