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: Wed, 31 Dec 2025 08:54:46 +0000 [thread overview]
Message-ID: <bug-220904-208809-fZU9Y5ET0b@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 #4 from Thomas Jetzinger (thomas@jetzinger.com) ---
Created attachment 309100
--> https://bugzilla.kernel.org/attachment.cgi?id=309100&action=edit
full dmesg with thunderbolt.dyndbg=+p
Kernel: 6.18.2-arch2-1
Repro: Boot with dock → ethernet works. Unplug/replug dock → ethernet gone.
Key logs:
- Boot: cdc_ether registered at usb-0000:00:0d.0-3.1
- Unplug [178.9s]: r8152-cfgselector disconnect, cdc_ether unregister
- Replug [189.1s]: Thunderbolt resumed, USB hubs + HID + audio re-enumerated
- Ethernet (2-3.1) never re-registered
Note: "r8152-cfgselector: Unknown version 0x0000" at boot - driver falls back
to cdc_ether.
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next prev parent reply other threads:[~2025-12-31 8:54 UTC|newest]
Thread overview: 16+ 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 [this message]
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
2026-01-20 15:54 ` bugzilla-daemon
2026-01-20 18:56 ` bugzilla-daemon
2026-02-13 15:01 ` bugzilla-daemon
2026-02-17 11:44 ` bugzilla-daemon
2026-02-18 16:51 ` bugzilla-daemon
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