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 89AC63F0740 for ; Tue, 19 May 2026 09:14:28 +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=1779182068; cv=none; b=UbDIhb4G5+LiT5jpJD9q4utTnm4IUf8iDN94LN95Y8eLJSdQ+oJO4Evlluts6iW6Y+SWURRbEy0B49h1zmA6FXMYB4jN/CREBFLBk1sr1BfRRn5TYN14OD918ma9wjnBnM+bBstEcRfvnlqmR2c8Y103phTogKI2278Z2cYGE5k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779182068; c=relaxed/simple; bh=L8sc6E9xyapZCazBMP7klCQkllhyq0Y38suBvDd5WGw=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=rXEsEu9Oscva9DzslPvV0YVTH6gXeAa6hmcz8QCWz9H5/l/OtBxcN9hFNyk7BDopCfg/DT4yW2KubnVRORo5cV5xA6VAh8W+0ABsDtH9G5j2IQCLDkhHKoZOmQbjvILN3vwRrm1Twuujc6LaZyNBCq9TFxfuFwpXH45D+kxeXjQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HjEFKy4L; 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="HjEFKy4L" Received: by smtp.kernel.org (Postfix) with ESMTPS id 49609C2BCFA for ; Tue, 19 May 2026 09:14:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779182068; bh=L8sc6E9xyapZCazBMP7klCQkllhyq0Y38suBvDd5WGw=; h=From:To:Subject:Date:In-Reply-To:References:From; b=HjEFKy4L3kbvBhdovdBuWP3Z/SCKmcJqHilquJJ9g9b+TrHP9f8Q9HDO4MJkiLO9q FbhTbESFi2KkremxNaA9kpxIwVQPy1MHYuBLO6NepE4GuP+R3KmvpH7Zpa9/Dq/6Sw Vq21K6jcxx89Hio2cZlS23SmtWtEA2n2nmNcC1ea2CdLdEcRVLj55tqNsxeUKQifLd xVYsyriQAGnP5xL6kViUobNSSQA6PtkKysg4rWP9W6UNeMG4AOFTuTailkQnDDVHki wVprFHsKbYaeH3I+PoUeIcxpQG1zDEDzJpIxba9OMfNFJ4UKX8wmR0uOWm8W6jnX9E r9ioCzC0YXd+A== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 3F589C53BC5; Tue, 19 May 2026 09:14:28 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 221073] xHCI host controller dies on resume from s2idle on AMD Strix Halo [1022:1587] Date: Tue, 19 May 2026 09:14:27 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: jase_harley@protonmail.com X-Bugzilla-Status: NEEDINFO X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D221073 jase_harley@protonmail.com changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jase_harley@protonmail.com --- Comment #43 from jase_harley@protonmail.com --- I can reproduce a very similar issue on a Lenovo ThinkPad T14 Gen 6 AMD / R= yzen AI 7 PRO 350. I do not currently have access to the device, so this is from notes/memory rather than freshly collected logs. Hardware: - Lenovo ThinkPad T14 Gen 6 AMD - CPU: AMD Ryzen AI 7 PRO 350 - BIOS: 1.13 - Internal camera: Chicony USB camera 04f2:b840 Distributions/kernels where observed: - Ubuntu 24.04 LTS - Ubuntu 26.04 - Fedora 43 - Fedora 44 - Kernel range observed: approximately 6.17.0 through 7.0.8 Symptoms: - Internal Chicony USB camera 04f2:b840 disappears after suspend/resume. - /dev/video* disappears when the failure occurs. - Logs have shown USB resume failure / PM resume errors. - The visible symptom is the webcam disappearing, but the failure appears t= o be at the AMD xHCI / USB controller layer rather than a camera-specific issue. - The machine has also had hard freezes/lockups around power-management eve= nts. Workaround observations: - Unbind/rebind of the affected xHCI controller can restore the camera. - Forcing the AMD USB/xHCI PCI controllers to power/control=3Don before sus= pend appears to have prevented the hard freezes so far. - However, power/control=3Don has not fully prevented the internal webcam f= rom disappearing after resume. Affected controllers seen on this machine include: - 0000:c4:00.4 - 0000:c6:00.0 - 0000:c6:00.3 - 0000:c6:00.4 This may suggest two related behaviours: 1. runtime PM / autosuspend seems involved in the more severe freeze/lockup behaviour; 2. the remaining webcam disappearance may still match this bug=E2=80=99s su= spected xHCI resume / interrupt / MSI-X issue. I have not yet tested xhci_hcd.quirks=3D0x40. I can provide logs and test xhci_hcd.quirks=3D0x40 if that would help. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=