Lenovo Ideapad Y510 Hibernation

These are the steps I took to enable lid-close hibernation and network recovery
on a Lenovo Ideapad Y510 laptop. This is for release version of openSUSE 10.3
with KDE. These steps should be of help with other laptops.

1. Disable knetworkmanager from running at startup. Go into options for
knetwork manager.

2. Enable suspend-to-disk in kde.
Configure desktop -> Display -> Power Control -> Configure KPowersave
General Settings -> Button Events
Lid close Button: select Suspend to disk

3. In /usr/lib/pm-utils/sleep.d, add the following script. I named mine
98wireless even though it effects both network interfaces. The first
two digits of the file name are important, they select the run order,
the remainder of the name is not.

#!/bin/sh
# restart networks after hibernate

case "$1" in
thaw)
/bin/init.d/network stop
/bin/sleep 3
/bin/init.d/network start
;;
*)
;;
esac

Chmod this file to 755 to make it executable.

4. Close the lid to see if it goes to sleep, then power it back up. Once
you are convinced the lid switch is working, you can force hibernation
by running pm-hibernate as root. Be sure to give the machine and your
access point enough time to establish the connection.


Knetworkmanager:
About half of the time after a resume, knetworkmanager would crash with
a signal11. The other half of the time it would stop user access to the network.
By monitoring the console of the Cisco AP1200 I could see the laptop authenticate
and associate, and ifconfig would show the network to be up, but no user network
access. Disabling knetworkmanager stopped all of that. I don't see that I'm
loosing much except the cute blue graph in the task bar. If anyone knows another
way around this, let me know.


References:
http://en.opensuse.org/Pm-utils