Hi all, I'm running 10.10 on an Asus N61JQ laptop. Here are the steps
I've taken to get suspend/hibernate working on my laptop.  For
hibernate, I had to resize my swap as it had been created smaller than
my actual RAM size. I tried adding SUSPEND_MODULES="xhci_hcd", which
helped but did not resolve the issue completely. I could see the hard
drive saving the current state to disk, after a minute there would be no
more hard drive activity but a blinking cursor remained on the screen. I
would then have to switch off the laptop manually. On turning the laptop
back on, the system was correctly restored to its state before I
initiated the hibernate.   Blacklisting in /etc/modprobe.d didn't make a
difference, on hibernating the laptop wouldn't switch off, with a
blinking cursor.

I found the solution on ubuntuforums.org, see comment #7 by John Dias:
http://ubuntuforums.org/showthread.php?t=1444822

His solution involves a script for unbinding ehci_hcd from the kernel
(which should be made executable). I followed his instructions, using
xhci_hcd instead of xhci for part 2 and now suspend/hibernate works
perfectly.

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https://bugs.launchpad.net/bugs/522998

Title:
  XHCI (USB 3.0) kernel Module Prevents Suspend

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