Disabling and Re-enabling APM Alters Power Schemes Timeouts
ID: Q247020
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The information in this article applies to:
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Microsoft Windows 2000 Professional
SYMPTOMS
When you disable and then enable advanced power management (APM) on a computer running Microsoft Windows 2000 Professional, the power schemes change. The changes affect the automatic standby and hibernation timeout options and can cause battery power loss.
STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 2000 Professional.
MORE INFORMATION
The following tables show what the power scheme settings are when you disable or enable APM. Use the appropriate set of steps to view the changes.
To view power scheme changes on a computer that has the APM auto-enable feature:
- Install Windows 2000.
- In Control Panel, double-click Power Options and then view
the power scheme, noting the settings.
- Disable APM.
- Restart the computer.
- Enable APM.
- View the power scheme again to see the changes.
Starting Behavior for the Portable/Laptop Scheme
| |
Plugged In |
Running on Batteries |
|---|
| Monitor |
After 15 Min. |
After 5 Min. |
| Hard Disks |
After 30 Min. |
After 5 Min. |
| Standby |
After 20 Min. |
After 5 Min. |
| Hibernation |
After 1 Hr. |
After 10 Min. |
Behavior After Disabling the Portable/Laptop Scheme
| |
Plugged In |
|---|
| Monitor: |
After 15 Min. |
| Hard Disk: |
After 30 Min. |
Behavior After Enabling APM Again
| |
Plugged In |
Running on Batteries |
|---|
| Monitor |
After 15 Min. |
After 5 Min. |
| Hard Disks |
After 30 Min. |
After 5 Min. |
| Standby |
Never |
Never |
| Hibernation |
BLANK |
After 5 Min. |
To view power scheme changes on a computer that supports APM but is not auto-enabled:
- Install Windows 2000.
- In Control Panel, double-click Power Options, and then view
the power scheme, noting the settings.
- Enable APM.
- View the power scheme and note the changes.
- Disable APM.
- Restart the computer.
- Enable APM.
- View the power scheme to see the changes.
Starting Behavior for the Home/Office Desk Scheme
| |
Plugged In |
|---|
| Monitor: |
After 20 Min. |
| Hard Disk: |
Never |
Behavior After Enabling APM and Hibernation
| |
Plugged In |
Running on Batteries |
|---|
| Monitor: |
After 20 Min. |
After 5 Min. |
| Hard Disk: |
Never |
After 10 Min. |
| Standby: |
Never |
Never |
| Hibernation: |
Never |
After 15 Min. |
Behavior After Disabling the Home/Office Desk Scheme
| |
Plugged In |
|---|
| Monitor: |
After 20 Min. |
| Hard Disk: |
Never |
Behavior After Enabling APM Again
| |
Plugged In |
Running on Batteries |
|---|
| Monitor: |
After 20 Min. |
After 5 Min. |
| Hard Disk: |
Never |
After 10 Min. |
| Standby: |
Never |
Never |
| Hibernation: |
Never |
Never |
Additional query words:
standby
Keywords :
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbbug