Source: linux Version: 6.12.113-1 Severity: important X-Debbugs-Cc: [email protected]
Dear Maintainer, --- Details --- A regression has been introduced in kernel version 6.12.113 affecting the AMD Renoir xHCI USB controllers [1022:1639]. USB hotplug detection completely breaks after boot, though all devices connected at boot enumerate successfully. --- Symptom --- - All peripheral devices enumerate correctly during boot. - After boot, zero insertion interrupts are reported by xHCI. No dmesg lines appear and no errors are logged when plugging/unplugging devices on all ports except one (port 3-2 on controller 04:00.4). - Reproduced using both a Wavlink USB-C dock (Fresco Logic FL1100 hub) and direct connections. --- Regression Testing --- - Works correctly on: Linux 6.12.107 (and 6.12.101) - Broken on: Linux 6.12.113 --- Troubleshooting / Ruled Out --- - `usbcore.autosuspend=-1` added to kernel command line has no effect. - Runtime PM is not the cause (`power/runtime_status = active`). - No xHCI-specific errors are present in `dmesg`. --- Hardware Information --- - Machine: Acemagic AMO6 - DMI: HC Technology HCAR5000-MI, BIOS 0.33 (09/25/2025) - Processor: AMD Ryzen 7 7730U - USB Controllers: xHCI 0000:04:00.3 and 0000:04:00.4 [1022:1639] -- System Information: Debian Release: 13.7 APT prefers stable-updates APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable') Architecture: amd64 (x86_64) Kernel: Linux 6.12.113+deb13-amd64 (SMP w/16 CPU threads; PREEMPT) Kernel taint flags: TAINT_WARN Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
