Evie Summers
There are several ways to wake a sleeping PC connected to a docking station. One way is to change the BIOS setting to Always On USB, which will allow a USB mouse or keyboard to wake up the PC. Another way is to disable USB selective suspend settings in the Windows power plan. Additionally, some docking stations may have a power button that can be used to wake the PC. However, there may be issues with certain laptop models, such as the Lenovo ThinkPad, where the power button does not wake the PC when connected to a docking station.
Waking a sleeping PC on a docking station
| Characteristics | Values |
|---|---|
| Laptop brand | Dell, Lenovo, HP |
| Laptop model | ThinkPad, T410, T14s, T480, X1C |
| Docking station brand | Dell, Plugable, Lenovo, Wavlink |
| Docking station model | UD-3900, TBT3-UDZ, ThinkPad Dock, USB-C Dock, Thunderbolt Dock |
| Connection type | USB, USB-C, Wireless |
| Devices used to wake the laptop | Power button, keyboard, mouse |
| Settings adjusted | BIOS, USB Selective Suspend, Always On USB, USB settings for power |
| Laptop lid position | Open, closed |
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What You'll Learn
Waking a PC with a wireless keyboard
Check Power Settings:
- Ensure your PC is set to sleep and not hibernate. Hibernate may be set as the default after an hour of sleep.
- Go to the Device Manager and find your input devices.
- Go to Properties, then Power, and ensure "Let this device wake my computer" is enabled.
Change USB Settings:
- In the Control Panel, go to Power Options, then Advanced Settings.
- Under "USB Settings", set the USB selective suspend setting for "Plugged in" to "Disabled". This keeps power on to the wireless keyboard's USB receiver dongle, even in sleep mode.
Enable USB Wake Support in BIOS:
- In the Windows Settings or Cortina search box, search for "Change advanced startup options" and select it.
- Under "Advanced startup", click "Restart now".
- At the "Choose an option" screen, select "Troubleshoot", then "Advanced options", then UEFI Firmware Settings, and click "Restart".
- The PC should reboot into the BIOS utility. Here, ensure the "Always On USB" setting is enabled.
Press the Sleep Keyboard Shortcut:
Press a standard key on your wireless keyboard or quickly press the power button on the computer.
Note: Some Bluetooth keyboards may not be able to wake the system due to power consumption requirements. If you are using a Bluetooth keyboard, you may need to open the laptop lid or use a non-Bluetooth device to wake the PC.
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Using a USB device to wake a PC
USB devices can be used to wake a PC from sleep mode. Examples of devices that have remote wake-up capabilities include mice, keyboards, USB hubs, modems (wake on ring), NICs, and wake on cable insertion. However, it's important to note that not all USB devices have this capability, and it may depend on the specific device and the BIOS settings of the computer.
To enable a USB device to wake a PC from sleep, you can try the following steps:
- Check your BIOS settings: Ensure that your BIOS settings allow for waking up from USB. If not, you may need to update your BIOS to add this functionality.
- Verify the device's remote wake-up feature: According to the USB specification, the host software must set the remote wake-up feature on a device "only just prior" to putting it to sleep. Check if your device has this feature enabled.
- Use a command line: Open the Command Prompt as an administrator and type the following command: "powercfg -deviceenablewake " followed by the name of your USB device in quotation marks. For example, if your USB device is named "USB Dongle XYZ," the command would be: "powercfg -deviceenablewake "USB Dongle XYZ"".
- Test the USB device: After configuring the settings, test if your USB device can successfully wake your PC from sleep mode by pressing a button or key on the device.
It's important to note that some manufacturers, such as Lenovo, may have specific designs that prevent waking from USB when the device is connected to certain docks. In such cases, you may need to press the power button on the dock or attach the USB device directly to the PC.
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BIOS settings to wake a PC
To wake a PC from sleep mode, you can try pressing a key on the keyboard or moving the mouse. If this does not work, you may need to press the power button to wake the computer.
If you are using a docking station, you can change the power settings in Windows to prevent the PC from going into sleep mode when plugged in.
If you want to wake your PC from sleep mode using a USB device, you will need to enable the "Always On USB" setting in the BIOS. This setting can usually be accessed by pressing a key such as Delete or F2 during boot-up.
Additionally, you can configure your PC to wake from sleep mode using a Bluetooth device. However, this may not work in certain power management states such as "suspend" or "hibernate". Many laptop manufacturers do not allow this due to the power consumption required to keep the Bluetooth radio activated.
If your PC is waking up from sleep mode unexpectedly, you can try troubleshooting by opening the Start menu, searching for "Device Manager," and finding the device in the resulting list. Right-click on the device, select Properties, then open the Power Management tab. Here, you can uncheck the "Allow This Device to Wake the Computer" option.
You can also try entering the BIOS and disabling USB waking if this option is available. The BIOS setup can usually be accessed by pressing a specific key during boot-up, as indicated on the boot screen.
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Power button not waking a PC
If your PC is not waking up from sleep mode, there are several steps you can take to diagnose and resolve the issue.
Firstly, check the external factors. Ensure that the power outlet is functioning by plugging in another device. Verify that the power cable and any surge protectors or power strips are connected properly and functioning.
If the issue persists, it may be due to a faulty power button connection. Open the computer case and inspect the power button connection on the motherboard. Ensure that the power cables are properly connected to the power button and look for any loose wires or disconnected cables.
If you have a reset button, you can try switching the connectors of the reset and power buttons on the motherboard to determine if the issue is specific to the power button. If your PC case has a transparent side panel, you can simply press the cable against the switch to see if it was loose.
Another way to test the power button is to bridge the two pins where the wires connect using a screwdriver. This will help you determine if the issue is with the motherboard or the power button. If the computer turns on, the power button is faulty and needs to be replaced.
Additionally, if your PC has a USB-C port, you can try using a USB mouse or keyboard to wake it up. However, note that some manufacturers, such as Lenovo, have removed this capability from recent docking stations.
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PC goes to sleep while in use
If your PC goes to sleep while in use, there are several troubleshooting steps you can take to address the issue. Here are some detailed instructions to guide you through the process:
Check Power Settings:
Begin by reviewing your power settings to ensure they are configured according to your preferences. Here's how you can adjust these settings:
- Open the Control Panel.
- Navigate to "Appearance and Personalization" or "Appearance."
- Click on "Change plan settings" under your selected power plan.
- Click on "Change advanced power settings."
- Expand the "Sleep" entry, then expand "System unattended sleep timeout."
- Modify the timeout value to a longer duration, such as 30 minutes, and click "OK."
Update Graphics Card Driver:
If your PC has a high-end graphics card, a faulty or outdated graphics card driver could be causing the issue. Try updating the graphics card driver to the latest version to resolve any compatibility or stability issues.
Disable Screen Saver:
Your screen saver settings may be contributing to the problem. To disable the screen saver:
- Press the Windows logo key + R on your keyboard to open the Start menu.
- Type "lock screen settings" in the search bar and select it.
- Click on "Screen saver settings" at the bottom of the window.
- Set the screen saver to "None" and check if the issue persists.
Check Third-Party Programs:
Some third-party programs may have settings that trigger your PC to go to sleep. Review any recently installed programs and check their settings to ensure they are not causing the issue.
Check Battery Health:
If your PC is a laptop, consider checking the health of your battery. A low battery capacity may cause Windows to put your computer into sleep mode to prevent data loss when the battery runs out of energy.
BIOS Settings:
If you're using a USB mouse or keyboard to wake your PC, ensure that the BIOS setting "Always On USB" is enabled. This setting allows USB devices to wake the computer from sleep mode.
By following these steps, you should be able to resolve the issue of your PC going to sleep while in use. If the problem persists, you may need to perform additional troubleshooting or seek technical support.
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Frequently asked questions
Check your BIOS settings and ensure that the "Always On USB" setting is enabled. If this setting is disabled, your PC will not be able to wake from sleep mode via USB.
Try disabling the "USB selective suspend settings" on your PC. To do this, go to Windows > Edit Power Plan > Change Advanced Power Settings > USB Settings > Plugged in > Disable.
Yes, but this may depend on the specific model of your PC and docking station. In some cases, the USB devices need to be attached directly to the PC for this to work.
Yes, some docking stations can automatically wake up a connected sleeping PC. However, this feature may vary depending on the brand and model of the docking station and PC.
