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To: linux-bluetooth@vger.kernel.org
Subject: [Bug 218416] hci0: command 0xfc05 tx timeout in kernel 6.7.1
Date: Sat, 09 Mar 2024 16:52:51 +0000
Message-ID: <bug-218416-62941-WeQvpoWLTz@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=3D218416

--- Comment #7 from Nickolas Gupton (nickolas@gupton.xyz) ---
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 fam=
ily
Mar 09 10:41:19 andromeda kernel: Bluetooth: HCI device and connection mana=
ger
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 recove=
ry
failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: sending frame failed (-1=
9)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Reading supported featur=
es
failed (-19)
Mar 09 10:41:20 andromeda kernel: Bluetooth: hci0: Error reading debug feat=
ures
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 (-1=
9)
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] Lo=
aded
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 13933=
26
usecs
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Waiting for device to bo=
ot
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Device booted in 14610 u=
secs
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Malformed MSFT vendor ev=
ent:
0x02
Mar 09 10:41:22 andromeda kernel: Bluetooth: hci0: Found Intel DDC paramete=
rs:
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 bu=
ild
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=20
modprobe -r btusb
modprobe -r btintel
sleep 2
modprobe btintel
modprobe btusb
sleep 1
systemctl restart bluetooth

--=20
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