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 BFF5C2441A6 for ; Sat, 18 Oct 2025 17:50:31 +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=1760809831; cv=none; b=l804CasaiA6LdY/AA/kB0h5Vy5Je4VLZ/hkuu5j2AMs3LMiLR+5UukCPKh9c0twiUMPBrDwaPVThsCbXG+auFfiYMorv+KWK//r2gsix3X+mWZta8DBlv5iTZCBByV5tThe3OUDYOG5MupBKvejUipYPG96CFsHNYd8Ch6TwK5c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760809831; c=relaxed/simple; bh=huZ9PaiocCxLxlWEY+9fdeDg5X2Re31G98yCzWJabaA=; h=From:To:Subject:Date:Message-ID:Content-Type:MIME-Version; b=S/Pt9nxGGVy3e0LmhLiUTrezIyVJQjZE61LZ5Nw13ihcmxw1mzpmrMMW91M9P5kxFS9X03ft0Lz/VrmfumsXGGpxYPQZa1jkpEOsJF648Z8EZwjbTaRyQAvY/x4+U37SRRcvQDTx9RH0046ivXtTW57R82GMCR0ZrvYjMSeAHWk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=e1x5u4tP; 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="e1x5u4tP" Received: by smtp.kernel.org (Postfix) with ESMTPS id 4F65BC4CEF8 for ; Sat, 18 Oct 2025 17:50:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760809831; bh=huZ9PaiocCxLxlWEY+9fdeDg5X2Re31G98yCzWJabaA=; h=From:To:Subject:Date:From; b=e1x5u4tPO419UylU3XRuOBExLP7ijgMd7K1l72w0kTwn8NRJEUgLItXttG4jadQ+2 TS2UOOQEl5OWUxqhRv6d0jPPmMFaQsgkFqkzb/+4/KOSwvec55wWsEAScq0nniQLY4 nMz6Qn9HyGJhfHNGIi/coFnbdFaasoLQ1n8j6ksOZazoicXFyhhOBrP0MqVD7eRftN V64enUMl8WNM7+banYf573rApTo7HTswRgoKx17hy6tgYUgjnaM+A/lzQfVSxJu8FD Wz4tfeAvG9o+SyQoIUIkPdEV+H7o+ps134in9ON9umC0etwXyTaIWwaBUSqmVrL/PZ 8pwvuT7EniDyA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3E932C3279F; Sat, 18 Oct 2025 17:50:31 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 220682] New: Bluetooth adapter (MediaTek MT7925, USB ID 0489:e111) stops working after user logs in to the GNOME Date: Sat, 18 Oct 2025 17:50:30 +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: alex.jakimov@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 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=3D220682 Bug ID: 220682 Summary: Bluetooth adapter (MediaTek MT7925, USB ID 0489:e111) stops working after user logs in to the GNOME Product: Drivers Version: 2.5 Hardware: All OS: Linux Status: NEW Severity: normal Priority: P3 Component: Bluetooth Assignee: linux-bluetooth@vger.kernel.org Reporter: alex.jakimov@gmail.com Regression: No Created attachment 308826 --> https://bugzilla.kernel.org/attachment.cgi?id=3D308826&action=3Dedit Logs Bluetooth adapter (MediaTek MT7925, USB ID 0489:e111) stops working after u= ser logs in to the GNOME desktop on a Lenovo Yoga Pro 7 running Fedora 42. The problem is timing-sensitive and appears to be caused by a software-level conflict, as the hardware works correctly on Windows 11. Attempts to resolve the issue with standard workarounds, including kernel module reloading via systemd and udev, adjusting kernel parameters with GRUB (btusb.enable_autosuspend=3D0), and configuring power management with TLP, = have failed. Logs show the bluetooth.target being stopped post-login and reveal potential communication errors (ACL packet for unknown connection handle). Relevant log entries 1. Hardware identification via lsusb: text Bus 003 Device 002: ID 0489:e111 Foxconn / Hon Hai Wireless_Device Use code with caution. 2. Kernel and boot environment: text uname -r 6.14.0-63.fc42.x86_6 GRUB_CMDLINE_LINUX=3D"rhgb quiet btusb.enable_autosuspend=3D0" Use code with caution. 3. Initial successful bluetoothd startup (post-login failure): text Oct 18 20:31:29 fedora kernel: Bluetooth: MGMT ver 1.23 Oct 18 20:31:29 fedora bluetoothd[2491]: Battery Provider Manager created Oct 18 20:31:29 fedora kernel: hid-generic 0005:046D:B035.0002: input,hidra= w1: BLUETOOTH HID v0.06 Mouse [MX Master 3S B] on 84:9e:56:33:6b:2a Oct 18 20:31:34 fedora kernel: hid-generic 0005:046D:B369.0003: input,hidra= w2: BLUETOOTH HID v0.16 Keyboard [MX Keys Mini] on 84:9e:56:33:6b:2a Oct 18 20:31:45 2a01-5a8-301-815b--1009.v6.vivacom.bg kernel: Bluetooth: RF= COMM TTY layer initialized Oct 18 20:31:54 2a01-5a8-301-815b--1009.v6.vivacom.bg systemd[1]: Stopped target bluetooth.target - Bluetooth Support. Use code with caution. 4. ACL packet error showing low-level communication issue: text Oct 18 20:31:30 fedora kernel: Bluetooth: hci0: ACL packet for unknown connection handle 3837 Use code with caution. 5. Corrected module reload fails, showing btmtk is not the right module for this device: text Oct 18 20:23:29 2a01-5a8-301-815b--1009.v6.vivacom.bg kernel: usbcore: deregistering interface driver btusb Oct 18 20:23:29 2a01-5a8-301-815b--1009.v6.vivacom.bg kernel: btusb: unknown parameter 'btmtk' ignored Oct 18 20:23:29 2a01-5a8-301-815b--1009.v6.vivacom.bg kernel: usbcore: registered new interface driver btusb Use code with caution. Steps to reproduce Boot Fedora 42 on the Lenovo Yoga Pro 7. Log in to the GNOME desktop. Observe that the Bluetooth adapter disappears shortly after login. Run journalctl -b | grep -i "bluetooth" to confirm the bluetooth.target was stopped and the ACL packet for unknown connection handle error is present. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=