home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
IBM Presents OS/2 Software Hits 1995
/
OS-2_SW_HITS_2ND_EDITION_1995.ISO
/
i06
/
os2power.exe
/
README.APM
< prev
Wrap
Text File
|
1994-04-12
|
9KB
|
206 lines
Copyright (C) IBM Corporation 1993
OS/2 Version 2.1
README.APM v1.0 8/17/93
----------------------------------
Purpose
--------
To describe the Advanced Power Management feature, its installation
and use with the OS/2* operating system.
Advanced Power Management
-----------------------------
Advanced Power Management (APM) is a feature that allows the reduction
or removal of power to devices when the computer is inactive for a
specified period of time. After a period of inactivity, APM instructs
the display to go into various power-management modes. If your
display has power-management capability and conforms to the VESA**
(Video Electronics Standards Association) DPMS (Display Power
Management Signaling) interface, using the APM might result in a power
savings. Refer to the documentation that came with the display, to
determine whether your display does conform to the VESA DPMS
interface.
APM provides three different power-management modes. These may be
changed according to your preferences. The three modes are:
STANDBY....Minimum power savings, with immediate return to ON
SUSPEND....Medium power savings, with a slightly slower return to ON
OFF........Maximum power savings, with a noticeable delay in
returning to ON
For proper operation, the timeout values should be chosen so that
standby is not greater than suspend, and suspend is not greater than
off. By default, these values are set to:
STANDBY....15 minutes
SUSPEND....30 minutes
OFF........60 minutes
With these settings, when the keys or mouse are not used for 15 minutes,
the display will go into standby mode. After another 15 minutes of
inactivity, it will go into suspend mode. If there is still no
activity, 30 minutes later it will go into off mode. Whenever you
press a key or move the mouse, full power returns to the display. "On"
is the only state where the screen is not blanked. You can set each
of these timeout values from 1 to 99 minutes. Any of the three modes
can be disabled.
See your display documentation for recommended settings. The recommended
settings for the IBM PS/2* Energy Saving Color Monitor are:
STANDBY.....5 to 30 minutes
SUSPEND....20 to 50 minutes
OFF........40 to 70 minutes
Prerequisites for Installation
---------------------------
1. A diskette containing the APM programs has been created.
You should use one of the following methods to create the
diskette depending on the format of the files you received.
a. unzip the APMDISK.ZIP file or
b. run LOADDISK (or equivalent) on OS2DPMV.DSK file
2. OS/2 2.1 must be installed and running correctly.
3. Advanced Power Management support for your system must be
installed. If it is not, refer to your OS/2 Using the Operating
System manual to do a selective installation. The Power icon should
appear on your Desktop, within OS/2 System, System Setup.
4. Make a backup copy of your CONFIG.SYS file. To do this:
a. Open the OS/2 System object.
b. Open the Command Prompts folder.
c. Open the OS/2 Full Screen or OS/2 Window object.
d. Type CD \ and press Enter.
e. Type copy CONFIG.SYS CONFIG.BAK and press Enter.
f. When the copy is complete, minimize the OS/2 window or
if you are using the OS/2 Full Screen, type EXIT and
press Enter.
g. Close the Command Prompts folder.
h. Close the OS/2 System object.
Installing APM from Diskette
---------------------------
To install from the APM Installation diskette:
1. Insert the APM Device Support Installation diskette in your
diskette drive.
2. Open the OS/2 System object.
3. Open the Command Prompts folder.
4. Open the OS/2 Full Screen or OS/2 Window object.
5. Type the letter of the drive containing the diskette, followed by
a colon (for example, A:); then press Enter.
6. Type REMAPM and press Enter.
7. When the program ends, minimize the OS/2 window or if you are
using the OS/2 Full Screen, type EXIT and press Enter.
8. Close the Command Prompts folder.
9. Open the System Setup object.
10. Open the Device Driver Install object.
11. Enter the Source directory (where the APM Device Support
Installation diskette is located).
12. Enter the destination directory, making sure it is your startup
drive (usually C:\).
13. Select "Install".
14. Select the "IBM Advanced Power Management Video Device Drivers" to
install from the list.
15. Select "OK".
16. After completion, exit the installation program. Select "OK" for the
system restart message box.
17. Open the Command Prompts folder.
18. Open either the OS/2 Full Screen or the OS/2 Window object.
19. Change to the OS/2 subdirectory by typing:
a. X: (where "X" is your startup drive)
b. CD \OS2
20. Type INSTOPT and press Enter. (The Options page is added to your
Power object.) After a few messages a "program complete" message
appears. No errors should be reported.
21. When the program ends, minimize the OS/2 window or if you are
using the OS/2 Full Screen, type EXIT and press Enter.
22. Close the OS/2 System object.
23. Remove the diskette from the diskette drive
24. Shut down and restart your computer. To shut down your system:
a. Close all open windows.
b. Point to an empty area on the desktop.
c. Click the right mouse button.
d. Select "Shut down".
e. Select "OK".
f. Press Ctrl+Alt+Del keys, when prompted.
Changing Power-Management Modes
-----------------------------------
Power management modes can be changed either from within OS/2 or by
modifying the CONFIG.SYS file. If you are not an experienced user,
you should follow the method described for within OS/2.
From Within OS/2
----------------
Once APM has been installed, the Power object will have an
additional page in the Power Settings notebook.
To change the default settings:
1. Open the OS/2 System object.
2. Open the System Setup object.
3. Open the Power object, or for a shortcut, place the cursor over Power
object and click right mouse button. Go to step 5.
4. Click on the Power window title-bar icon in the top left corner.
5. Click on "Open".
6. Select "Settings". A Power-Settings Options page will be
displayed.
7. Either make your changes to the power-savings modes, or to
disable or enable the power-saving function; click on DPMS "Off",
or "DPMS On".
To put your display into one of the power-saving modes immediately:
1. Open the OS/2 System object.
2. Open the System Setup object.
3. Open the Power object, or for a shortcut, place the cursor over Power
object and click right mouse button. Go to step 5.
4. Click on the Power window title-bar icon in the top left corner.
5. Click on the desired power-saving mode.
For more information, click on the Help button on the Power Management
Options window.
In Your CONFIG.SYS
------------------
If you change the power-management modes in the CONFIG.SYS
file, you should be an experienced user, and you must know that SBTO refers
to standby mode, SUSPTO refers to suspend mode, and DSPOFFTO
refers to off mode. If you want to change any of the values for these
modes, change the following line:
Note: Values entered in the config.sys file will not take effect until a
shutdown and reboot.
DEVICE=(DRIVE:)\OS2\APMBIOSC.SYS /SBTO:mm /SUSPTO:mm /DSPOFFTO:mm /DPMS:x
where: mm = either 0, which prevents the system from entering that
mode or a timeout value in minutes (from 1 to 99).
x = either YES (Y), which will override the DPMS setting in
the display's DMQS file, or NO (N), which will not override
the DPMS setting. The value of x only tells the device
driver to: Ignore the DMQS file and always enable DPMS if the
value of x is "Y". If the value of x is "N", then use the
display's Power Management status as stored by its DMQS file.
In either case, the Power icon should appear on the Desktop
and the Options Settings page should always be available.
Example: DEVICE=(DRIVE:)APMBIOSC.SYS /sbto:3 /suspto:5 /dspoffto:15 /dpms:y
Trademarks
------------
The following terms, denoted by an asterisk (*), used in this
document, are trademarks of the IBM Corporation in the United States
or other countries:
IBM PS/2
The following terms, denoted by a double asterisk (**), used in
this document, are trademarks of other companies as follows:
VESA Video Electronics Standards Association