Troubleshooting Bluetooth Input Lag on Ubuntu 22.04 (AX210)
Bluetooth input lag on Ubuntu 22.04, especially with the Intel AX210 Wi-Fi + Bluetooth built-in chipset, can be frustrating. This article will guide you through troubleshooting and resolving Bluetooth input lag issues, focusing on the AX210 chipset.
1. Check Bluetooth Service
First, ensure that the Bluetooth service is running:
sudo systemctl status bluetooth
If the service is not active, start it:
sudo systemctl start bluetooth
2. Update Kernel and Firmware
Updating the kernel and firmware can resolve Bluetooth input lag issues. To update the kernel, use the following commands:
sudo apt update
sudo apt install linux-generic-hwe-22.04
After updating the kernel, reboot your system. For firmware updates, use the following command:
sudo apt install linux-firmware
3. Disable Power Saving
Power saving can cause Bluetooth input lag. To disable power saving for Bluetooth, edit the configuration file:
sudo nano /etc/udev/rules.d/51-bluetooth.rules
Add the following lines:
ACTION=="add", SUBSYSTEM=="bluetooth", RUN+="/usr/bin/btmgmt power on"
ACTION=="remove", SUBSYSTEM=="bluetooth", RUN+="/usr/bin/btmgmt power off"
Save and close the file. Then, reload the udev rules:
sudo udevadm control --reload-rules
sudo udevadm trigger
4. Adjust Audio Settings
Input lag can be caused by audio settings. To adjust audio settings, install the PulseAudio Volume Control:
sudo apt install pavucontrol
Launch the application, navigate to the "Configuration" tab, and ensure that the correct profile is selected for your Bluetooth device.
5. Troubleshoot with bluetoothctl
The bluetoothctl command-line tool can help troubleshoot input lag issues:
sudo bluetoothctl
power on
agent on
default-agent
pair
trust
connect
- Check Bluetooth service status and start the service if it's not active.
- Update the kernel and firmware to the latest versions.
- Disable power saving for Bluetooth devices.
- Adjust audio settings using PulseAudio Volume Control.
- Troubleshoot using the
bluetoothctlcommand-line tool.
References
- Ubuntu Community Help Wiki: Bluetooth
- Intel: Intel® Wireless Bluetooth® Technology
- Arch Linux Wiki: Bluetooth