en[EVENT34] Cancel power saving setting of power management of Bluetooth HID device

SC2 2018-02-18

2021-08-31

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Event ID 34, BTHUSB warning log was recorded.

This is a warning related to power management of Bluetooth HID devices.

If your Bluetooth mouse disconnects frequently, following the steps described may help.

However, logging may not stop.

Event Log

Event Log
message	Local adapter does not support critical low energy controller states to support ambient mode. The minimum required state mask supported is 0x491f7fffff, but I got 0x1fffffff. The low energy peripheral roll feature is disabled.
The name of the log	system
Source	BTHUSB
Event id	34
level	warning
user	N /A

Steps to change Bluetooth HID device settings

Open the power management options under Bluetooth HID Devices and turn off power saving settings.

Specifically:

1. Start Device Manager

Windows 10> Right click on Start Menu> Device Manager

2. Human interface device

Deploy Human Interface Device
Double-click the Bluetooth HID device to display its properties.

3. Power management

Display the power management tab, and uncheck the following ☑.

Allow computer to turn off this device to save power

Do not mistake the device to be set

Multiple Bluetooth devices are displayed.

This article applies to the following devices:


〇	Human Interface Device> Bluetooth HID Device
×	Bluetooth

Afterword

The Bluetooth mouse is no longer frequently disconnected after performing the steps noted, but the event log is still logged.

However, the event log is no longer recorded on another PC that performed the same procedure.

... mystery?

If you perform the steps in the previous section on a new PC, the symptoms may improve and the event log may not be recorded. (Total guess)

Source site

The procedure is based on information from the Microsoft community.

Reproduce the relevant parts.

In Device Manager, disable and re-enable the relevant bluetooth driver.

In Device Manager, in the power management of the relevant bluetooth driver properties, uncheck "Allow my computer to turn off this device to save power (A)".

In Control Panel, on the Options tab of the bluetooth settings, select the Allow Bluetooth devices to connect to this computer check box.

(In the case of keyboard), in the "Device and Printer", in the property "Service" of the device, the state where "Keyboard, mouse, and other drivers (HID)" is originally checked is correct. It was off, so I checked it

Microsoft community

External link