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Symptoms

When you utilise a Microsoft mouse or keyboard that is listed in the "Applies to" section, y'all may experience one of the following symptoms:

• You may be unable to wake the computer from sleep or standby mode past using your mouse or keyboard.

• Afterwards you wake your computer from standby, your pointing device may not piece of work.

• When you press the SLEEP key on a keyboard that has a Sleep key or has a primal that is configured to actuate Slumber, the calculator does non go into Sleep style.

Cause

This issue may occur if 1 or more of the post-obit conditions are true:

• You are running Windows Vista and have non updated to Service Pack 1 or a later version.

• The Basic Input/output Organisation (BIOS) system that is installed on the computer reduces ability to the port to which the input device is connected.

  Note You may be unable to use Bluetooth devices to resume performance from certain power management states (such as "suspend" or "hibernate"). In some low-power states, the wireless transceiver may be unable to receive information from the Bluetooth devices.

• You are using a portable or notebook computer that does not allow resume by using a Bluetooth device. If you lot are having bug waking a laptop past using a Bluetooth device, meet Method 3 first.

• The Keyboard item in Control Panel is not configured to wake the computer when you press a fundamental on the keyboard.

• Your computer may accept encountered a system trouble.

• The Sleep key on your keyboard is configured incorrectly.

Resolution

If pressing the Sleep key over again does not resolve this, try each of the following methods in the club in which they are presented and make up one's mind whether the problem notwithstanding exists before you try the next method. If yous are using the original version of Vista and take not updated to the latest bachelor Service Pack, updating to Service Pack 1 or a subsequently version may resolve this problem.

For more information, click the following commodity numbers to view the articles in the Microsoft Knowledge Base of operations:

928631 A USB device may no longer piece of work correctly after Windows Vista resumes from sleep or from hibernation

871233 USB device is non recognized when you adhere it immediately after your Windows XP-based computer resumes from standby or hibernation

929577 A Bluetooth device may no longer work correctly when you wake a Windows Vista-based computer from slumber

Method 1: Install the current software for your device and verify its configuration

First, download the latest version of the Microsoft IntelliType software, IntelliPoint software, or both for your keyboard, your mouse, or both. To do this, visit the post-obit Microsoft Web site:

http://world wide web.microsoft.com/hardware/download/download.aspx?category=MK Later yous install this software, run information technology, and then verify that the correct device is selected and that the settings are every bit you want them to be. If your keyboard does non have a dedicated Slumber central and you want to program Sleep for an alternative key, follow these steps:

1. Open the Keyboard control panel.

   • In Windows Vista or Windows 7, Click
     Start , type keyboard in the Get-go Search box, and and so click Keyboard or Microsoft Keyboard in the Programs list.

   • In Windows XP and earlier versions, click Start, click Run, blazon Control keyboard, and so click OK.
     

2. On the Primal Settings tab, double-click the key that you desire to change to access the Reassign a Key wizard.

3. Select the Start a Program, Spider web page, or file option, and then click Next.

4. To enable this key to start Sleep style, run the post-obit command:

   rundll32.exe powrprof.dll,SetSuspendState Note In this command, there are spaces earlier and later on powrprof.dll.

Method two: Try alternative keys, mouse buttons, or the power push on your keyboard

To resolve this result and resume computer operation, use one of the following methods:

• Press the SLEEP keyboard shortcut.

• Press a standard key on the keyboard.

• Movement the mouse.

• Quickly press the power button on the computer.

  Note If yous utilise Bluetooth devices, the keyboard may be unable to wake the arrangement.

Method 3: Verify that your device is allowed to wake the estimator

To resolve this issue for, follow these steps:

1. Open up the Keyboard control panel item, as described in Method 1.

2. Click the Hardware tab, and so click Backdrop.

3. Click the Change Settings button

   Note This step requires Ambassador admission

4. Click the Power Management tab, and and so verify that the Allow this device to wake the computer is enabled.

5. Click OK, and then click OK again.

Note If your computer does not back up Advanced Configuration and Ability Interface (ACPI), the earlier steps may not be available. In this case, you lot have printing the power button to wake the calculator. If you cannot resume computer operation past using whatsoever of these methods, yous may have experienced a system problem.

For information about how your system resumes operation, run across the documentation that accompanied your reckoner or contact the reckoner manufacturer. For information about Microsoft Windows Power Management settings, see Microsoft Windows Help.

Note Many laptop manufactures will not allow a Bluetooth device to wake the computer from sleep style because of the ability consumption requirements to keep the Bluetooth radio activated (Bluetooth paging can consume up to fifteen% of the figurer's power). Therefore there are a couple of workarounds that you tin can use:

• If y'all can open the lid of your laptop, apply the embedded keyboard or pointing device or an external non-Bluetooth device to wake the calculator.

• If you cannot open the lid (for example, because it is in a docking station) or if you accept it plugged into external power (that is, yous are not using the battery), you tin alter the Ability settings in Windows to not go into Slumber fashion when plugged in.

Alternatively the Microsoft Bluetooth stack or your laptop's proprietary Bluetooth stack may allow customization to allow wake by using Bluetooth devices.

Method iv: Examine the BIOS settings of your computer for power features that disable or reduce power to ports that are used for your keyboard or mouse

Because BIOS access varies by computer, to resolve this issue, come across the documentation that is included with your computer. Alternatively, contact your estimator manufacturer for data about how to configure the BIOS.

For more than data about hardware and software vendor contact data, visit the following Microsoft Web site:

http://support.microsoft.com/gp/vendors

More Information

The ability to recover from sleep way by pressing a primal on the keyboard or past moving the mouse on a calculator that supports ACPI is dependent on the computer's motherboard. This power is disabled in older Intel motherboards, and the only mode to wake the computer from sleep mode is to press the Power button.

With most newer motherboards, you can wake the computer by pressing the Power button, past pressing a fundamental on the keyboard, or by moving the mouse.

ACPI support is necessary to take full reward of the power management and Plug and Play features in Windows. If you are not sure whether your computer is ACPI-compliant, please see the printed documentation for your computer or motherboard, or contact the manufacturer of your computer or motherboard.

For more information about hardware and software vendor contact information, visit the post-obit Microsoft Web site:

http://support.microsoft.com/gp/vendors Microsoft provides tertiary-party contact data to help you notice technical support. This contact information may change without detect. Microsoft does non guarantee the accurateness of this third-political party contact information.

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Source: https://support.microsoft.com/en-us/topic/troubleshoot-problems-waking-computer-from-sleep-mode-6cf5b22f-5111-92c3-4a28-eec6e6ff908e

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