Miya Pearson
If you're having trouble waking up your PC from sleep mode using a Bluetooth keyboard, you're not alone. This is a common issue with several possible causes and solutions. Firstly, it's important to understand that when a computer enters sleep mode, it may disconnect Bluetooth devices, preventing them from being used to wake it up. This can be due to power-saving features or limitations in the Bluetooth adapter. In some cases, the computer hardware may not support Wake-on-Bluetooth at all. To resolve this issue, you may need to adjust settings in the BIOS, enable certain features in the operating system, or even resort to using a wired USB keyboard to wake up your PC. Let's explore these options in more detail.
How to wake up a sleeping Bluetooth keyboard
| Characteristics | Values |
|---|---|
| Operating System | Windows, Linux, Ubuntu, Mac OS X |
| Devices | Apple Wireless Keyboard, Dell Bluetooth Keyboard, Logitech MX Keys 3 Bluetooth Keyboard, Henge Dock |
| Solutions | Check if the Bluetooth adapter is powered on during sleep, enable Modern Standby, check BIOS settings, press any key on the keyboard, restart the computer, press the power button |
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What You'll Learn
Ensure the keyboard is sending and the laptop is receiving something
To ensure that the keyboard is sending and the laptop is receiving something, you can try the following:
First, check that the keyboard is on and enabled. Some keyboards have an on/off switch, so make sure it is turned on. If it is battery-powered, ensure that the batteries are charged or replace them if necessary. If you have a wireless keyboard, check that the USB dongle is properly attached.
Next, you may need to enable the keyboard in Device Manager. This is especially relevant if you previously disabled it in Windows.
Additionally, review the file /etc/udev/rules.d/90-hid-wakeup-enable.rules and ensure that it is configured correctly. After making any necessary changes, restart your computer and put it into sleep mode. Try pressing a key on your keyboard, and your laptop should resume.
If your keyboard is not responding, try cleaning it. Dirt or sticky residue under the keys could be causing the issue. If your keyboard has been exposed to liquid, it may need to be replaced, but cleaning it may help revive it.
Finally, if your keyboard still isn't sending or receiving, you may need to update your drivers. A driver installation or update may be necessary, especially if you have an advanced keyboard or if your existing driver has been deleted or needs a bug fix.
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Check if the laptop is in a deep sleep mode
If you're having trouble waking up your Bluetooth keyboard, it's possible that your laptop is in a deep sleep mode. Here are some ways to check if your laptop is in a deep sleep mode:
Check the Power Light Indicator
The power light indicator, typically located near the power button, can help you determine the power state of your laptop. If the light is off, it indicates that your laptop is shut down. If the light is on and steady, it means your laptop is turned on. If the power light is blinking at a consistent rate, it suggests that your laptop is in sleep or standby mode.
Check the Screen and Keyboard
A simple way to check if your laptop is in a deep sleep mode is to try moving the mouse or pressing any key on the keyboard. If the laptop is asleep, these actions should wake it up. Additionally, check if the screen turns on when you open the lid.
Review Power Settings
To review your power settings, go to Start, then Settings > System > Power & Sleep. Here, you can adjust how long the laptop waits before turning off the screen or going to sleep when inactive. You can also access "Additional power settings" to further customize how your laptop uses power.
Troubleshooting Tips
If your laptop won't wake up, try some basic troubleshooting steps. First, ensure that your laptop is updated to the latest version of the operating system and that your BIOS is up to date. Disconnect all external devices, including the keyboard, mouse, and any other peripherals, as they might be causing the issue.
If the problem persists, you can try restoring your device to a previous restore point or resetting the device to its original configuration. For specific instructions on troubleshooting sleep and hibernation issues, refer to your laptop manufacturer's support website.
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Check if the Bluetooth adapter is kept on during sleep
If you are having trouble with your Bluetooth keyboard not waking up from sleep, it could be that your computer hardware does not support Wake-on-Bluetooth. You can check this by following the steps below:
Windows
- Press the Windows key + X key to open the Device Manager.
- Select the Bluetooth driver.
- Right-click and select Properties.
- In the Properties window, select the Power Management tab.
- Here, you should see the option to allow the computer to turn off this device to save power. Ensure that this setting is disabled (i.e., the box next to it is not checked).
- Also, in the same window, check the setting for allowing this device to wake the computer. Ensure that this setting is enabled (i.e., the box next to it is checked).
Mac
- Click the Start button and then open the Control Panel.
- In the Control Panel window, click on Hardware and Sound.
- In the Hardware and Sound window, under Devices and Printers, click on Device Manager.
- In the Device Manager window, double-click on Bluetooth Radios.
- Under Bluetooth Radios, double-click on Generic Bluetooth Adaptor.
- In the Generic Bluetooth Adaptor Properties window, click on the Power Management tab.
- Here, you should see the option to allow the computer to turn off the device to save power. Ensure that this setting is disabled.
General Troubleshooting
- Check your power configuration (Power Options) in the Windows Control Panel.
- Try disabling USB selective suspend.
- Ensure that your computer's hardware and your Bluetooth device support Wake-on-Bluetooth.
If you are still facing issues, you may need to refer to the specific manufacturer's support page for your Bluetooth keyboard or device.
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Check if the device supports Modern Standby
Modern Standby is a power-saving feature introduced by Microsoft to bring a more smartphone-like experience to Windows laptops and PCs. It allows devices to go into a low-power state while still maintaining network connectivity and receiving notifications and updates.
There are several ways to check if your device supports Modern Standby mode. Here are some methods to determine if your device is compatible:
Check the Specifications
Most modern laptops and tablets that support Modern Standby mode will have this information listed in the product description or user manual. Look for keywords like "Connected Standby" or "Modern Standby" to see if your device is compatible.
Check the Device Manager
Another way to check is by looking for the "System devices" section in Device Manager. To access Device Manager, right-click on the Start menu and select "Device Manager" from the list. In Device Manager, expand the "System devices" section and look for an entry called "Microsoft ACPI-Compliant System." If this entry is present, your device supports Modern Standby mode.
Check the Power Options
You can also check if Modern Standby mode is supported by looking at the power options available in Windows. To do this, go to Settings > System > Power & Sleep. Under the "Power & Sleep" section, click on "Additional power settings" to open the Power Options window. Look for a power plan that includes the term "Modern Standby" or "Connected Standby."
Check the Sleep States
Open a command prompt and type the powercfg -a command, then press Enter. Check the results to see if Standby (S0 Low Power Idle) Network Connected or Standby (S0 Low Power Idle) Network Disconnected is listed as an available sleep state. If you see Standby (S0 Low Power Idle) with a note saying "The system firmware does not support this standby state," your device does not support Modern Standby.
Check the Network Adapters
Expand the list of network adapters and right-click to view the properties of your Wi-Fi or Ethernet device. Click on the Advanced tab and look for options related to "Energy Efficient Ethernet" and "Wake on Magic Packet." The presence of these features may indicate support for Modern Standby.
It's important to note that even if your device meets the hardware and software requirements, other factors like BIOS settings and driver updates can impact your experience with Modern Standby.
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Check if the BIOS settings have been configured correctly
To check if the BIOS settings have been configured correctly, you will need to access the BIOS setup. This can usually be done by pressing a specific key, such as F2 or DEL, during startup. Once you are in the BIOS setup, you can check and adjust the power management settings and sleep mode settings. Ensure that the settings are configured to allow your Bluetooth keyboard to wake up the computer.
It is worth noting that some BIOS configurations may prevent proper wake-up or cause the computer to enter sleep mode prematurely. Additionally, wireless devices like Bluetooth keyboards can sometimes cause complications with sleep mode due to connectivity issues or power-saving features.
You can also try updating your device drivers to improve their compatibility with sleep mode functions. If you are using Windows, you can access the Device Manager and select the 'Power Management' tab. Ensure that the 'Allow this device to wake the computer' option is checked. This will allow the Bluetooth keyboard to wake up the computer from sleep mode.
If you are still experiencing issues, you may need to refer to the documentation that came with your computer or contact the manufacturer for specific instructions on configuring the BIOS settings for your particular model.
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Frequently asked questions
If your computer is in a deep sleep, you may need to press the power button to wake it up. If this doesn't work, you could try reviewing and restarting your computer as per the file instructions: /etc/udev/rules.d/90-hid-wakeup-enable.rules. If you are using a Windows 10 PC, you can try typing "powercfg hibernate off" into an admin-elevated command prompt.
When your computer is in sleep mode, it is looking for HID devices, so the keyboard starts in HID mode. When the computer wakes up, Linux looks for an HCI device. The keyboard will need to reset the connection, which happens naturally after about 45 seconds. You can also force the connection reset by removing the batteries, but this may mess up the pairing.
The Bluetooth adapter on your motherboard may be turning off completely when your computer goes to sleep. You could try keeping the adapter powered on during sleep mode.
You may need to use a game pad to wake the device from sleep, then you can unlock it with your Bluetooth keyboard.
