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 9573F3D667D for ; Thu, 6 Aug 2026 09:27:24 +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=1786008444; cv=none; b=h7pJJOm52WFdR2anL9Y/PvWcWwelfEBmOPO7qeS3jSXtWDcdTp4b9+9oj2ygM4TTfKS6wqub87WnJ6GLazce/wrDqU7XoZoRzscBN3OxjHb2odpeV1vBLDSpZPGXjl0FoPrJ9zGj7bgsjAswZmlEmrpq5ekcWWwBfWjwotz4s7M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786008444; c=relaxed/simple; bh=VdiX37xljZaSZRWFGi4RnEhc33aNzgjsLurHWAm/tG4=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=BQzywMr0JSSVOOs9XvGhkAEoJNZuzEq0+8bMuwJN7HL0zrlOfbZL8hpX2aTpDgG7tQjCSeIIbclYcewlMwtv8QKtTW+a4CCWpPioI/q+BPoREZP3kVvwcFfXGlnb6MabHZZb8WbXhDwy51EwxafVXaa3iYqDbmKUCySmKs6yIAc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fUxy1QAq; 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="fUxy1QAq" Received: by smtp.kernel.org (Postfix) with ESMTPS id 6612DC2BCB9 for ; Thu, 6 Aug 2026 09:27:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1786008444; bh=VdiX37xljZaSZRWFGi4RnEhc33aNzgjsLurHWAm/tG4=; h=From:To:Subject:Date:In-Reply-To:References:From; b=fUxy1QAqWhJzY9IwkM9NASQnubi7OWY42ITuoAgvW2zviUbB/F1ixVA4l5r7HkUb1 4cLQWW3cKliZtF5LB4U15pmfdiYILR4ZCcVGAxyZT7vNu438FQSoZjl0ypariz1CSj ZcYOcf9NSi8DX1nntlM4bG2PPBFHTXkJC3xsXJQ07CBWAOU0erAieA4YHjMxtEeqaP +f/OeFkbT+DiDGPs95wToanB9R5GOguCUyIv9xFERZ2amEOtiuUwRJ8jlf4iMb8Nx3 Khlocx8HCgtB9JWwycXS+ZTbHvMispZskxA23rKrhaEjkgGgQTveirmp1OfeaQWoi1 4n3s1OT5r0vlQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 4061CC3279F; Thu, 6 Aug 2026 09:27:24 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-bluetooth@vger.kernel.org Subject: [Bug 221837] Bluetooth (RTL8852BU, 0bda:b853) never initializes. Opcode 0xfcf0 Date: Thu, 06 Aug 2026 09:27:24 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Drivers X-Bugzilla-Component: Bluetooth X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: blocking X-Bugzilla-Who: rohanasrani3@gmail.com X-Bugzilla-Status: NEEDINFO X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: linux-bluetooth@vger.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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=3D221837 --- Comment #2 from Rohan (rohanasrani3@gmail.com) --- Sorry, I forgot to mention that I originally faced this issue in kernel 7.0.0-28 with the the latest firmware. I then tried to jump onto different = old kernel versions to see if that might fix the issue. No help. I'm not sure if Mint supports 7.1.6 yet as I cannot see it in Update Manager. I get the same dmesg on the new updated kernel as well: ``` [ 1.457364] usb 1-5: Product: Bluetooth Radio [ 2.820216] Bluetooth: Core ver 2.22 [ 2.834484] NET: Registered PF_BLUETOOTH protocol family [ 2.834492] Bluetooth: HCI device and connection manager initialized [ 2.834506] Bluetooth: HCI socket layer initialized [ 2.834511] Bluetooth: L2CAP socket layer initialized [ 2.834525] Bluetooth: SCO socket layer initialized [ 2.943691] Bluetooth: hci0: RTL: examining hci_ver=3D0b hci_rev=3D000b lmp_ver=3D0b lmp_subver=3D8852 [ 2.946667] Bluetooth: hci0: RTL: rom_version status=3D0 version=3D3 [ 2.949812] Bluetooth: hci0: RTL: btrtl_initialize: key id 0 [ 2.949823] Bluetooth: hci0: RTL: loading rtl_bt/rtl8852bu_fw.bin [ 2.950664] Bluetooth: hci0: RTL: loading rtl_bt/rtl8852bu_config.bin [ 2.959682] Bluetooth: hci0: AOSP extensions version v0.96 [ 2.959687] Bluetooth: hci0: AOSP quality report is not supported [ 4.661628] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 4.661634] Bluetooth: BNEP filters: protocol multicast [ 4.661639] Bluetooth: BNEP socket layer initialized ``` Is there anything else I can do? --=20 You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.=