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 491F84B0495 for ; Thu, 8 Oct 2026 15:38:19 +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=1791473899; cv=none; b=ZaMaA4urXgu/pnjSB3jd265YTD2DV46yotrNKHcEUUcNJUifV1M4EYCGD2fXLMiUROf31cq9rBn5Fy66zpA0v1WomtYPIhufEjETuHhrL35V616NljnwLX4zfQLk2VgBjmL/JC0S+Hhb1g2duKdRO2Y3rScWhkHOHKb4f8L/LCI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791473899; c=relaxed/simple; bh=bLB1AItXcAUQNnq/1+yKP8ZjbJ6fLnh9zNrIjYpLLxk=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=MZSAFKi5d+i/4PMX9NGdhpk6e5VvmBor0AyDeRwMNqEx16t2ixZyHT5XX2y/RgvJFQ6vIFhf1mA0e2aCO9Xd81cie67Sx3M5BT+0iUGNVvFVZGv21NvYm5jyerW3SQucUHpXmZUyJvZF/Q5jphQLjHsIihw40haWeLc73xZfI1k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rIRYJKB+; 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="rIRYJKB+" Received: by smtp.kernel.org (Postfix) with ESMTPS id CA686C2BCC7 for ; Thu, 8 Oct 2026 15:38:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1791473898; bh=bLB1AItXcAUQNnq/1+yKP8ZjbJ6fLnh9zNrIjYpLLxk=; h=From:To:Subject:Date:From; b=rIRYJKB+qcBnQQEXHBvgBn8hdFsQPjd4Ne3MLOWbc/7ijYHdnS06eIePwTw3rAXg6 oBrK7Sq4f7Z4RSvzkkS11Ro7MByDgFtRzmP11csvesflxCxJa2hI2U+xFlVaUVzSS/ 75ZEc9Nc3akYBFByhhvmYs6mBaslTYXqbNuHIS8Q+kQLdn8v0ftnecLfv80LAc6zNu JtDuLyaBDwOzMcQd6/TpnYLzILJOWcJPHFbDKI4RBX+NjvdW8mY7a+0BG5I4yLhoQR Bv5/G74XF+eewJXTzutlEP6jRyDbw+sGZ/f8F8t211ilIrPV2Zwr65SfC61P0G2Aqk CnuAsVzTDmo8Q== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id A6FE6C3279F; Thu, 8 Oct 2026 15:38:18 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 222105] New: btintel_pcie (8086:e476, Panther Lake CNVi): BLE device using a Resolvable Private Address fails to reconnect after suspend/idle and requires re-pairing Date: Thu, 08 Oct 2026 15:38:18 +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: przemekm83@interia.pl 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 attachments.created 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=3D222105 Bug ID: 222105 Summary: btintel_pcie (8086:e476, Panther Lake CNVi): BLE device using a Resolvable Private Address fails to reconnect after suspend/idle and requires re-pairing Product: Drivers Version: 2.5 Hardware: Intel OS: Linux Status: NEW Severity: normal Priority: P3 Component: Bluetooth Assignee: linux-bluetooth@vger.kernel.org Reporter: przemekm83@interia.pl Regression: No Created attachment 311033 --> https://bugzilla.kernel.org/attachment.cgi?id=3D311033&action=3Dedit dmesg dump ENVIRONMENT =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Distro: Fedora 44 Kernel: 7.2.8-200.fc44.x86_64 Driver: btintel_pcie Controller: 00:14.7 Bluetooth [0d11]: Intel Corporation Core Ultra Process= ors (Series 3) CNVi Bluetooth [8086:e476] (rev 01) Firmware: intel/ibt-00a0-01a1-pci.sfi, firmware version 214-29.26 Peripheral: Logitech MX Anywhere 3S (BLE mouse), modalias usb:v046DpB037d0= 003 DESCRIPTION =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D A paired BLE mouse that has been working stops reconnecting after the laptop suspends (s2idle) or after an idle period. The device does not reappear in scans, and `bluetoothctl connect ` hangs with no result. Re-pai= ring fixes it, but the problem recurs. The same mouse reconnects flawlessly on macOS. The device uses a Resolvable Private Address (RPA). The stored bond contain= s an IdentityResolvingKey: AddressType=3Dstatic [IdentityResolvingKey] Key=3D... Observed behaviour: - After suspend/resume, the mouse is invisible to `bluetoothctl scan on`, w= hile other BLE devices in range ARE seen (so the radio receive path works). - The mouse's rotating RPA is not resolved back to its stable identity, so = the host treats it as a new device and the existing bond is effectively lost. - On re-pairing, the device identity address is regenerated by the peripher= al (last byte increments: DD:28:F7:5C:A0:49 -> DD:28:F7:5C:A0:4A). This is a consequence of the forced re-pair, not the root cause. - No clean disconnect is logged in the kernel; the link drops silently. REGRESSION NOTE =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D The problem started around 2026-10-06/07. The device had been stable for ~a month. Kernel 7.2.8 was installed on 2026-10-03 and is the most recent rele= vant update (the 7.2.8 changelog and recent linux-bluetooth patches touch RPA resolution and btintel_pcie). Not yet bisected against 7.2.7. REPRODUCTION =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D 1. Pair a BLE device that uses RPA (e.g. Logitech MX Anywhere 3S). 2. Suspend (s2idle) or leave the device idle until it deep-sleeps. 3. Resume / wake the device. 4. The device does not reconnect; it is absent from `bluetoothctl devices` (or a new address appears) and re-pairing is required. RELEVANT LOG LINES =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Bluetooth: hci0: Found device firmware: intel/ibt-00a0-01a1-pci.sfi Bluetooth: hci0: Firmware Version: 214-29.26 Bluetooth: hci0: Failed to send Intel_Write_DDC (-95) RELATED EXISTING BUGS =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D - 221346 btintel_pcie (8086:e476) hang in shutdown path - 221481 btintel_pcie: suspend fails with -EBUSY on Intel Lunar Lake (s2id= le) - 220419 Bluetooth stops working on Intel BE201 (btintel_pcie) --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=