(In reply to Takashi Iwai from comment #77) > BTW, one more thing that came to my mind. There is a known issue in XHCI > that can trigger spurious wakeups at suspend or shutdown, and the workaround > is applied only to limited platforms. For testing that, > - Disable ACPI wakeups in /proc/acpi/wakeup, and How to do that? Or is this a typo and you mean this: XHC S0 *enabled pci:0000:00:14.0 > - Boot with xhci_hcd.quirks=0x42000 option.