[Bug 522998] Re: XHCI (USB 3.0) kernel Module Prevents Suspend

[Lukas Svoboda]

echo disabled > /sys/bus/usb/devices/usb1/power/wakeup

solves the problem on Lenovo 3000 V100 laptop. The problematic device is
the integrated camera:

Bus 001 Device 002: ID 0402:5602 ALi Corp. Video Camera Controller

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XHCI (USB 3.0) kernel Module Prevents Suspend
https://bugs.launchpad.net/bugs/522998
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