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OS/2 Shareware BBS: 8 Other
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README
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1994-03-15
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README for APMHERE 3/15/94 Page 1 of 2
Copyright (C) International Business Machines Corp., 1994.
DISCLAIMER OF WARRANTIES AND LIABILITY:
---------------------------------------
The APMHERE program is a sample program created by IBM Corporation. This
program is not part of any standard IBM product and is provided to you
solely for the purpose of assisting you in the development of your applications.
The program is provided "AS IS", without warranty of any kind. IBM shall not
be liable for any damages arising out of your use of the sample program, even
if they have been advised of the possibility of such damages. The following
is provided without guarantees and IBM assumes no liability or
responsibility for the accuracy of this information. IBM assumes no financial
or legal liabilities arising from the distribution or use of this information.
OS/2 ADVANCED POWER MANAGEMENT SUPPORT FOR LAPTOP COMPUTER SYSTEMS
==================================================================
Every laptop has its own unique set of power management features (i.e. blank
screen after x minutes, press special key sequence to go to standby or
suspend mode, automatically go into suspend after x minutes of inactivity,
etc.). If a laptop uses a DOS power management device driver to provide
these features when running real mode DOS, they will not work under OS/2.
If these features are implemented in the laptops firmware they will continue
to work under OS/2 whether the OS/2 APM support is installed or not. Once
OS/2 APM is loaded, the OS/2 power object is available and provides the
ability to determine power source, battery life, the ability to suspend on
demand, etc. (see power object). If OS/2 APM support is not installed,
users cannot perform these additional features. This does not have any
impact upon the features that are built into the particular laptop.
* Laptop Computers compatible with OS/2 2.1 Advanced Power Management will
have 16 Bit Protect Mode APM in the BIOS.
* Laptop Computers that have 32 Bit Protect Mode APM will require fix
PJ08807 with the OS/2 2.1 base. (OS/2 2.1 GA has support for 16 Bit
Protect Mode APM. The PJ08807 fix simply adds 32 Bit Protect Mode APM
support to OS/2 2.1 GA.)
* Laptop Computers that have either 16 Bit Protect Mode or 32 Bit Protect
Mode APM and have OS/2 2.1 with Service pack (XR06200) will require
PJ12413. The PJ12413 fix corrects the Protect Mode APM support in
OS/2 2.11 (XR06200).
* Laptop Computers that have "No APM support in BIOS" or only have Real
Mode APM are not supported by OS/2 2.1 Advanced Power Management since
OS/2 is a Protect Mode only operating system. (Note: OS/2 does not
support the Real Mode APM since the OS/2 module VAPM.SYS does not
emulate the APM BIOS in a VDM session.)
The APMHERE program can be used to identify LAPTOP computers that have
Advanced Power Management support in conformance to the APM 1.0 Specification
(dated 1/91) (Note: Systems with BIOS dates prior to January 1991 will not
have the protect mode APM support in their BIOS.) Laptop computers that do
not have any APM support in their BIOS will also be identified.
README for APMHERE 3/15/94 Page 2 of 2
To run APMHERE.EXE:
1. Disable any DOS Power management drivers that are loaded with DOS.
(See contents of the DOS CONFIG.SYS file for the DOS Power Management
device drivers.)
2. Boot native DOS (with the DOS power management drivers disabled).
3. Run APMHERE.EXE. Redirect output to a file to save the information.
For example enter the command: APMHERE.EXE > APMOUT.TXT
4. Please also record the BIOS information displayed during a power up
reboot. Include the BIOS vendor, version, dates, etc.