Hi, On Sun, Apr 05, 2026 at 04:54:48AM +0100, Zakaria Ibarki wrote: > Hello Debian Kernel Team, > > I am experiencing a persistent hibernation failure on Debian 13 > (Trixie) using Kernel 6.12.74-2 on a Dell Latitude 5520. > > The system fails to hibernate only when a USB Mouse is connected. If > the mouse is unplugged, or if a USB Flash Drive is used instead, > hibernation works perfectly. > > Specific Error Logs (journalctl -p 3): > > Apr 05 04:35:39 debian kernel: ACPI Error: Thread 1625997312 cannot > release Mutex > Apr 05 04:35:39 debian kernel: xhci_hcd 0000:00:14.0: PM: > pci_pm_freeze(): hcd_pci_suspend returns -16 > Apr 05 04:35:39 debian kernel: xhci_hcd 0000:00:14.0: PM: > dpm_run_callback(): pci_pm_freeze+0x0/0xd0 returns -16 > Apr 05 04:35:39 debian kernel: xhci_hcd 0000:00:14.0: PM: failed to > quiesce async devices: -16 > Apr 05 04:35:39 debian kernel: PM: hibernation: Failed to load image, > recovering. > Apr 05 04:35:40 debian kernel: iwlwifi 0000:00:14.3: CSR_RESET = 0x10 > > The error -16 (EBUSY) during pci_pm_freeze suggests the XHCI > controller cannot be quiesced due to the HID device (mouse) activity. > > BIOS 'USB Wake Support' is disabled, and /proc/acpi/wakeup has been > toggled for XHCI with no effect. > > The WiFi (iwlwifi) also seems to trigger a reset sequence immediately > after the failed freeze. > > Is this a known regression in the 6.12 branch regarding XHCI power > management? Please let me know what further information or tests I can > provide.
Can you please fill a bug in the Debian BTS about it? Regards, Salvatore
