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 313B73D5640 for ; Mon, 12 Oct 2026 10:02:32 +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=1791799353; cv=none; b=pOjyv/yG+iXCscsicBr0Fmh6h1yeZp129njF4vXRIACSbi83jx48GSi51myN5U8sJSpx9E7rB6Rx9rguBV0tOpP66NitZzwJ3N4wosEa5EVEojxTHPctL1INffkWU3THWp/KwUncB+UUMFsXEp7wsfZNcjtAPcq0trqD7wkHaHE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791799353; c=relaxed/simple; bh=vz4XB6ECs5NjPbE0paCAYmIysj8w4KhBpZWhpYkhdYQ=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=hAh+eC1uEdKr3SrQnidQHgPPmyol5tKxFIZ02KMVn8/bC2yq1e3CGBXyc3kvcWDeye1PacEtQ356s0uyDwFesXNVUF4GqU7rchSL1HsKSnff35skWr5HVpzA7XqVTr2qyrcVIqsNyUrJcGv3OizjRZlVZxL4SLyhUnLNn8XEiAE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rCGVcnqr; 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="rCGVcnqr" Received: by smtp.kernel.org (Postfix) with ESMTPS id 83B54C2BCC7 for ; Mon, 12 Oct 2026 10:02:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1791799352; bh=vz4XB6ECs5NjPbE0paCAYmIysj8w4KhBpZWhpYkhdYQ=; h=From:To:Subject:Date:From; b=rCGVcnqrdCEbAg5WxsA/iLrbvNPajBDSOEXfxbAeVWeM6RUiCLozi+3eiu2hLRYAL S1Dw4QYR6SofIEx/Ia8ZfRayivQMTqvlATCxbH396lMUKYHtdE4fNKdqu5Ux8s+1Em xhEPOxIQNqs/Ch4BTGkULdslEYgfPsI1J208ZgC1+wB16fnBu8PJCaBCdNNhn4Py6M oxO65f1MWNxI39lpXGdTt7Qtpw/Dcg2moyj7edmiCrBe4sBE0Q1a/fbXGxXB3uKySi J7lZK3MSgbI38kC8ieCC7xr8WB1g1HlnMfbVpUatZ4NXuDWHyzgG+FvMdQl3fHiRnd ZdciIYeVGBdGA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 5FE33C3279F; Mon, 12 Oct 2026 10:02:32 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 222120] New: Intel CNVi: Wi-Fi roam drops active Bluetooth audio, ACL stays up (8086:e440 / 8086:e476) Date: Mon, 12 Oct 2026 10:02:32 +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: nanericwang@gmail.com 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 rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cf_regression 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=3D222120 Bug ID: 222120 Summary: Intel CNVi: Wi-Fi roam drops active Bluetooth audio, ACL stays up (8086:e440 / 8086:e476) Product: Drivers Version: 2.5 Hardware: Intel OS: Linux Status: NEW Severity: normal Priority: P3 Component: Bluetooth Assignee: linux-bluetooth@vger.kernel.org Reporter: nanericwang@gmail.com Regression: No Hardware 00:14.3 Wi-Fi [8086:e440] iwlwifi firmware 106.c88d33af.0 sc-a0-wh-b0-c106.ucode (iwlmld) 00:14.7 Bluetooth [8086:e476] btintel_pcie Headset: EDIFIER ClearCall 200, 0C:AE:BD:D3:B9:40 A2DP (SBC XQ) and HFP. The device stayed connected. Software Linux 7.2.9-2-cachyos (CachyOS build of tag cachyos-7.2.9-2) BlueZ 5.87, PipeWire 1.6.9 Bluetooth firmware: intel/ibt-00a0-01a1-pci.sfi version 214-29.26, timestamp 2026.29 build 96982, SHA1 0x239ed887 Audio was playing. Wi-Fi roamed. The A2DP and SCO transports went idle. bluetoothd logged nothing. btintel_pcie logged nothing. PipeWire then printed: spa.bluez5: Failure in Bluetooth audio transport .../sep1/fd0 pw.node: (bluez_output....) running -> error (Received error event) That PipeWire line is what it prints when an A2DP sink that was already running leaves the active state. Local time 2026-10-12, UTC+8. wlp0s20f3 lines are "disconnect from AP for new auth to ", all under 20:df:73. 16:00:38 roam 16:00:54 A2DP sep1/fd0 dies 16:00:55 roam 16:01:12 roam 16:01:32 SCO fd49 dies 16:01:38 A2DP sep1/fd0 dies again 16:01:46 roam >From 15:44 to 16:02 the same ESS roamed nine times. Those three audio failures are inside that window. btintel_pcie has no path that tears down A2DP or SCO because iwlwifi roamed. The ACL stayed up. The controller dropped the audio channel while Wi-Fi was using the radio. Boot log, separate from the drop. DSBR was applied. Bluetooth still came up. The .ddc file is 16 bytes. The first record is ID 0x0128, value 0x18. btintel_load_ddc_config() sends HCI 0xfc8b and returns on the first error, so ID 0x0126 is never sent. The caller ignores the error. Bluetooth: hci0: dsbr: enable: 0x01 value: 0x0b Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-00a0-01a1-pci.ddc Bluetooth: hci0: Failed to send Intel_Write_DDC (-95) This is not Launchpad 2088151. That one is Write_DDC -16, then hardware error 0x0f, on intel/ibt-0093-0291.ddc. Same PCI id, different bug: kernel bug 221346 is a shutdown hang in synchronize_irq(). --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=