From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1BB543594C for ; Tue, 5 Aug 2025 21:43:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754430220; cv=none; b=SE58DkV0psn24HGuGDdkh2sQEYlQDDjGKNQVE5UPeE8mwRDh6mtf5LdTPw/QA0kzTQ7/5hledtjxGVYW/HPpSc95VOg718a3t3ZQkzQpRomn2hyA179he/KolvpEnHmO9JrBgukIyrg7tuiXRqQ4vSNft8BhQzPsUOAnbA+WIHA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754430220; c=relaxed/simple; bh=wLVVtReepdMq3c+ofkDDk0CFpC8x1t7oK/tL9V+EibQ=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=uCP9VOuvCsDth6aip41E+SNPR98bVUTtg4s+I4yf4w/1XeB6AWek8e8LhNK6GaAM4s5jf1yiIHy+OvR+ZG+R+rBF9InjjXAYo0EJSLlSnZbGY4SfW4ZM8o8agxk56e3S6SGhO8ea8kfetaZPcsEmg/e4iWWNvUuPHRLtLZS8Aws= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fcTiwEWc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fcTiwEWc" Received: by smtp.kernel.org (Postfix) with ESMTPS id 8F41BC4CEF0 for ; Tue, 5 Aug 2025 21:43:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754430219; bh=wLVVtReepdMq3c+ofkDDk0CFpC8x1t7oK/tL9V+EibQ=; h=From:To:Subject:Date:From; b=fcTiwEWcoR6dVIKv0GEcKcR3g6sHfpAB/Tbn0X8slaWKha2cYtkSxdwBIf3efErq7 mud73LE3ZgQ2rpD5Yzu/2Ziu5d3N8IVFnFq9wsGS3F27qddqowgBLkcQBDie8rlrpk 1Qt9lzOtL21O5hXHz7bNwrnbRHlP/MUHMX7VgiY5/6HUXNsIYODno0Zn+tFIMG9mBO VQsDZbpbYEtbLNUmy+TQpnvEmlD+wv9oO4MrzXQWBq7BCELPNp/Mllkk3IjLzE+9gr uADmh3+zefo5uyni7/RX8oN4CboInkHZG3AAYFV2U9qSziDTlMl9U53LktN+w43A8o f/oXusYi0XPdA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 79CCDC3279F; Tue, 5 Aug 2025 21:43:39 +0000 (UTC) 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 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Drivers X-Bugzilla-Component: Bluetooth X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: anton@ekblad.cc X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-bluetooth@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression cf_bisect_commit Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-bluetooth@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D220419 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 on= e 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, Logi= tech 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/B= T. - Firmware version is 20250708. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=