From: bugzilla-daemon@kernel.org
To: linux-bluetooth@vger.kernel.org
Subject: [Bug 220419] New: Bluetooth stops working on Intel BE201 a few seconds after connecting a BT peripheral
Date: Tue, 05 Aug 2025 21:43:39 +0000 [thread overview]
Message-ID: <bug-220419-62941@https.bugzilla.kernel.org/> (raw)
https://bugzilla.kernel.org/show_bug.cgi?id=220419
Bug ID: 220419
Summary: Bluetooth stops working on Intel BE201 a few seconds
after connecting a BT peripheral
Product: Drivers
Version: 2.5
Kernel Version: 6.15
Hardware: Intel
OS: Linux
Status: NEW
Severity: normal
Priority: P3
Component: Bluetooth
Assignee: linux-bluetooth@vger.kernel.org
Reporter: anton@ekblad.cc
Regression: Yes
Bisected 6ed83047389c63a8d7712b0bf19eb38a6e4dc68e
commit-id:
Since 6.15, Bluetooth stops working a few dozen seconds after connecting one or
more BT peripherals on Intel BE201.
"Stops working" means that all BT connections time out, Blueman and anything
else that interacts with Bluetooth hangs, and a series of messages like this
end up in dmesg:
Aug 05 21:01:40 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:01:40 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:01:41 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:01:41 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:01:43 albedo kernel: Bluetooth: hci0: command tx timeout
Aug 05 21:02:10 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:02:10 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:02:40 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:02:40 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:03:10 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:03:10 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:03:40 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:03:40 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:04:40 albedo kernel: Bluetooth: hci0: link tx timeout
Aug 05 21:04:40 albedo kernel: Bluetooth: hci0: killing stalled connection
dc:2c:26:3e:58:cf
Aug 05 21:04:40 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:04:40 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:04:42 albedo kernel: Bluetooth: hci0: command tx timeout
Aug 05 21:04:43 albedo kernel: Bluetooth: hci0: Failed to send frame (-62)
Aug 05 21:04:43 albedo kernel: Bluetooth: hci0: sending frame failed (-62)
Aug 05 21:04:45 albedo kernel: Bluetooth: hci0: command tx timeout
Some other observations that might be helpful:
- Problem still exists in 6.16 and 6.15.9.
- WiFi is not affected.
- Unloading and reloading btintel_pcie and btintel "fixes" the problem for
another few dozen seconds.
- Turning off power management for BE201 doesn't seem to affect the problem.
- Actively streaming audio over Bluetooth seems to delay the problem.
- Tested with all possible permutations of Sony WH-1000XM6 headphones, Logitech
MX Master 3S mouse, and Keychron K7 keyboard.
- Bisecting shows the problem was introduced by commit
6ed83047389c63a8d7712b0bf19eb38a6e4dc68e.
- Hardware is a Dell XPS 13 9350 (2024, Lunar Lake) with Intel BE201 WiFi/BT.
- Firmware version is 20250708.
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next reply other threads:[~2025-08-05 21:43 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-05 21:43 bugzilla-daemon [this message]
2025-08-05 22:34 ` [Bug 220419] Bluetooth stops working on Intel BE201 a few seconds after connecting a BT peripheral bugzilla-daemon
2025-08-06 6:39 ` bugzilla-daemon
2025-08-06 9:14 ` bugzilla-daemon
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