Public bug reported:
On a system with an ASROCK N68S motherboard and a VIA VL800/801 PCI USB3
adapter, the system, which is a 64 bit kubuntu precise with a 3.2 kernel
cannot hibernate.
When you ask the system to hibernate, the OS does everything it should
and also appears to shut down the system (the fans stop). However, after
half a second the system restarts by itself, resuming from the
hibernation.
If you unbind the xhci_hcd driver from the usb card on the pci bus,
before hibernation then the system hibernates and resumes in the correct
way.
So, the very same hack proposed in bug report 522998 at comment 61 seem
to (hackishly) fixes the issue.
IMHO this looks like a bug in the xhci driver. Please report upstream.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1058725
Title:
XHCI (USB 3.0) kernel Module Prevents Hibernate
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