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Hibernation fails when USB Mouse is connected - Debian 13.4 (Kernel 6.12)

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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.

Best regards,
zakaria ibarki

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Thread

Hibernation fails when USB Mouse is connected - Debian 13.4 (Kernel 6.12) Zakaria Ibarki <midaribarki1995@gmail.com> - 2026-04-05 06:20 +0200
  Re: Hibernation fails when USB Mouse is connected - Debian 13.4  (Kernel 6.12) Salvatore Bonaccorso <carnil@debian.org> - 2026-04-08 07:00 +0200

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