I have the following problem with my Bluetooth module on my new Dell XPS 13 (9370) with Ubuntu preinstalled.
The bluetooth module gets disabled for some reason. The bluetooth devices (keyboard and mouse) just stop working in the middle of the work, the Bluetooth indicator goes away and the module is also gone in the rfkill list.
To get it back working I need to reboot the machine, start the BIOS, disable the Bluetooth module and re-enable it. After that, the bluetooth module is available again. That's pretty annoying.
My syslog when this happens:
Apr 11 12:25:45 visyu-albatross kernel: [ 2513.913725] usb 1-7: USB disconnect, device number 3
Apr 11 12:25:45 visyu-albatross acpid: input device has been disconnected, fd 22
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting Load/Save RF Kill Switch Status...
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Load/Save RF Kill Switch Status.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c9 of user root.
Apr 11 12:25:46 visyu-albatross acpid: input device has been disconnected, fd 21
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Startup finished in 15ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross bluetoothd[1062]: Endpoint unregistered: sender=:1.80 path=/MediaEndpoint/A2DPSource
Apr 11 12:25:46 visyu-albatross bluetoothd[1062]: Endpoint unregistered: sender=:1.80 path=/MediaEndpoint/A2DPSink
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c10 of user root.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Received SIGRTMIN+24 from PID 12120 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Startup finished in 14ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Received SIGRTMIN+24 from PID 12133 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c11 of user root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Startup finished in 15ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: user@0.service: Start request repeated too quickly.
Apr 11 12:25:46 visyu-albatross systemd[1]: Failed to start User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Received SIGRTMIN+24 from PID 12148 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c12 of user root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopped User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Removed slice User Slice of root.
Apr 11 12:25:47 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:47 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:47 visyu-albatross systemd[1]: Started Session c13 of user root.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Timers.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Sockets.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Paths.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Basic System.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Default.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Startup finished in 17ms.
Apr 11 12:25:47 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:47 visyu-albatross systemd[1]: bluetooth.target: Unit not needed anymore. Stopping.
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopped target Bluetooth.
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Shutdown.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Default.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Basic System.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Timers.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Paths.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Sockets.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Starting Exit the Session...
Apr 11 12:25:47 visyu-albatross systemd[12167]: Received SIGRTMIN+24 from PID 12184 (kill).
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopped User Manager for UID 0.
Apr 11 12:25:47 visyu-albatross systemd[1]: Removed slice User Slice of root.
Apr 11 12:25:48 visyu-albatross org.gnome.Terminal[2417]: ** (gnome-terminal-server:12197): WARNING **: Unable to set locale modifiers with XSetLocaleModifiers()
I already tried different things:
- Disabling TLP and disabling TLP for Bluetooth in
/etc/default/tlp - Updating the BIOS to version 1.2.1
- Setting this line to modprobe for ath10k:
echo "options ath10k_core skip_otp=y" > /etc/modprobe.d/ath10k.conf - Updating the
linux-firmwarepackage, like mentioned here: https://www.killernetworking.com/driver-downloads/kb/faq/1-killer-1535-1525-1435-in-ubuntu-debian
Nothing of this helped until now.
As far as I can see, it's the following hardware: QCA 6174 Killer Qualcomm / QCA 1535 Killer Qualcomm
Mostly I have these two bluetooth devices paired and connected:
- Logitech K810 keyboard
- Logitech MX Anywhere2 mouse
Best Answer
I had the same problem, and I think it improved by updating the Bluetooth firmware using the files included in the newest Windows driver. My MD5s:
By the way, an easier workaround was to unplug the power and do a suspend/resume cycle.
And at least mine is a 1435 Killer.