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From: bugzilla-daemon@kernel.org
To: linux-usb@vger.kernel.org
Subject: [Bug 220904] [BUG] ucsi_acpi: USB 3.0 SuperSpeed not negotiated on USB-C hot-plug
Date: Fri, 09 Jan 2026 12:19:00 +0000	[thread overview]
Message-ID: <bug-220904-208809-lpzCYQ8hw7@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-220904-208809@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=220904

--- Comment #10 from Thomas Jetzinger (thomas@jetzinger.com) ---
Created attachment 309154
  --> https://bugzilla.kernel.org/attachment.cgi?id=309154&action=edit
Tested with dynamic debug enabled. s2idle suspend/resume issue:

After resume, Thunderbolt xHCI (00:0d.0) reports "root hub lost power":

  usb usb1: root hub lost power or was reset
  usb usb2: root hub lost power or was reset
  usb 2-3: Waited 2000ms for CONNECT
  usb 2-3: can't resume, status -19
  usb 2-3: USB disconnect
  r8152-cfgselector 2-3.1: USB disconnect

All USB3 devices on Bus 2 disconnect and don't recover. Requires reboot.

Full dmesg with xhci_hcd and usbcore debug attached.

Kernel: 6.18.3-arch1-1

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      parent reply	other threads:[~2026-01-09 12:19 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-24 12:00 [Bug 220904] New: [BUG] ucsi_acpi: USB 3.0 SuperSpeed not negotiated on USB-C hot-plug bugzilla-daemon
2025-12-30 11:54 ` [Bug 220904] " bugzilla-daemon
2025-12-30 18:42 ` bugzilla-daemon
2025-12-31  5:59 ` bugzilla-daemon
2025-12-31  8:54 ` bugzilla-daemon
2025-12-31  9:24 ` bugzilla-daemon
2025-12-31 10:31 ` bugzilla-daemon
2025-12-31 13:31 ` bugzilla-daemon
2025-12-31 14:46 ` bugzilla-daemon
2026-01-05 15:28 ` bugzilla-daemon
2026-01-09 12:19 ` bugzilla-daemon [this message]

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