Bluetooth is still not working on boot with kernel 6.7.9 with linux-
firmware 20240220

$ lsusb | grep -i bluetooth
Bus 001 Device 008: ID 8087:0029 Intel Corp. AX200 Bluetooth

$ journalctl -b | grep -E -i bluetooth
Mar 09 10:41:19 andromeda kernel: Bluetooth: Core ver 2.22
Mar 09 10:41:19 andromeda kernel: NET: Registered PF_BLUETOOTH protocol family
Mar 09 10:41:19 andromeda kernel: Bluetooth: HCI device and connection manager 
initialized
Mar 09 10:41:19 andromeda kernel: Bluetooth: HCI socket layer initialized
Mar 09 10:41:19 andromeda kernel: Bluetooth: L2CAP socket layer initialized
Mar 09 10:41:19 andromeda kernel: Bluetooth: SCO socket layer initialized
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Found device firmware: 
intel/ibt-20-1-3.sfi
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Boot Address: 0x24800
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Firmware Version: 255-255.255
Mar 09 10:41:20 andromeda systemd[1]: Reached target Bluetooth Support.
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: FW download error recovery 
failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: sending frame failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Reading supported features 
failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Error reading debug features
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: HCI LE Coded PHY feature bit 
is set, but its usage is not supported.
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: sending frame failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Failed to read MSFT 
supported features (-19)
Mar 09 10:41:20 andromeda systemd[1]: Stopped target Bluetooth Support.
Mar 09 10:41:20 andromeda NetworkManager[795]: <info>  [1710002480.4767] Loaded 
device plugin: NMBluezManager 
(/usr/lib/NetworkManager/1.46.0-2/libnm-device-plugin-bluetooth.so)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Bootloader revision 0.3 
build 0 week 24 2017
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Device revision is 1
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Secure boot is enabled
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: OTP lock is enabled
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: API lock is enabled
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Debug lock is disabled
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Minimum firmware build 1 
week 10 2014
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Found device firmware: 
intel/ibt-20-1-3.sfi
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Boot Address: 0x24800
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Firmware Version: 255-255.255
Mar 09 10:41:20 andromeda systemd[1]: Reached target Bluetooth Support.
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Waiting for firmware 
download to complete
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Firmware loaded in 1393326 
usecs
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Waiting for device to boot
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Device booted in 14610 usecs
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Malformed MSFT vendor event: 
0x02
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Found Intel DDC parameters: 
intel/ibt-20-1-3.ddc
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Applying Intel DDC 
parameters completed
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Firmware revision 0.3 build 
249 week 27 2023
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: HCI LE Coded PHY feature bit 
is set, but its usage is not supported.


However, if I run this script (may take 2-3 runs sometimes) it will work:

$ cat reset_bluetooth.sh 
modprobe -r btusb
modprobe -r btintel
sleep 2
modprobe btintel
modprobe btusb
sleep 1
systemctl restart bluetooth

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/2051720

Title:
  Bluetooth Broken In Kernel Versions 6.5+ (Intel AX210)

Status in Linux:
  Confirmed
Status in linux package in Ubuntu:
  New

Bug description:
  ```
  kernel: Bluetooth: hci0: command 0xfc05 tx timeout
  ```

  This issue started with kernel 6.5. Bluetooth has been broken ever
  since. The issue was not present in earlier versions of the kernel.

  ```
  $ uname -a

  Linux 6.5.0-17-generic #17~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 16 
14:32:32 UTC 2 x86_64 x86_64 x86_64 GNU/Linux
  ```

  ```
  $ lsusb | grep -i bluetooth

  Bus 001 Device 004: ID 8087:0032 Intel Corp. AX210 Bluetooth
  ```

  ```
  $ journalctl -b | egrep -i bluetooth

  Jan 30 10:28:53 systemd[3247]: Reached target Bluetooth.
  Jan 30 10:28:53 systemd[1]: Reached target Bluetooth Support.
  Jan 30 10:28:55 kernel: Bluetooth: hci0: command 0xfc05 tx timeout
  Jan 30 10:28:55 kernel: Bluetooth: hci0: Reading Intel version command failed 
(-110)
  ```

  ```
  linux-firmware/jammy-proposed,now 20220329.git681281e4-0ubuntu3.25 all 
[installed,automatic]
  ```

To manage notifications about this bug go to:
https://bugs.launchpad.net/linux/+bug/2051720/+subscriptions


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