# Hibernate and suspend with Ubuntu 9.10


I have an Asus EeePC on which I've installed Ubuntu 9.10. 
But now I wanted a working hibernate (suspend to disk) and suspend (suspend to
memory).

Hibernate was working *out of the box* (well the going to sleep part, at
least), but resuming took almost as long
as a cold boot. Another thing was that my wireless was broken after a
resume.  On my happiness scale (range: 0-10) this scored a 3.

To fix the wireless I thought I could just unload the `ath9k` module
before suspending and loading it on resume. For this I added a `modules` 
script in the following directory `/etc/pm/sleep.d`:

    #!/bin/sh
    # Action script to remove/add modules

    PATH=/sbin:/usr/sbin:/bin:/usr/bin

    # pm-action(8) - <action> <suspend method>
    #
    case "${1}" in
	    suspend|hibernate)
		    modprobe -r ath9k
		    ;;
	    resume|thaw)
		    modprobe ath9k
		    ;;
    esac

After this my wireless was working like a charm.
On my happiness scale (range: 0-10) this scored a 5.

So next up: fix suspend. What was the problem? I could suspend my
laptop, but it came right back to live after a few *seconds* of
suspending. Not very useful.

After some googling around it hit me, USB wake ups! But how to do
silence the wake ups from your USB devices? The following works
for me:

    # disable wakeup events when suspending from USB
    echo disabled > /sys/bus/usb/devices/usb1/power/wakeup
    echo disabled > /sys/bus/usb/devices/usb2/power/wakeup
    echo disabled > /sys/bus/usb/devices/usb3/power/wakeup
    echo disabled > /sys/bus/usb/devices/usb4/power/wakeup

Now both hibernate and suspend are working (happniess = 8).