Tested several times and it only happened once that the file /etc/network/interfaces was changed. However sometimes coming back from hibernate and sleep the NetworkManager has kind of problems.
However, I think these problems might be related to the NetworkManager and not to Hibernate/sleep. And, all the network devices work properly when coming back to the session. I simply use the Network Menu to configure my wireless device. So for me I am happy that Sleep and Hibernate are working(until now all the time). Except the first time, maybe one has to reboot after upgrading acpi-support?(As Korny reported a failure for his first try too) So I repeat what I have done to get it working: -upgrade to acpi-support 0.85 - edit /boot/grub/menu.lst and add resume=/dev/sda4 as a bootparameter. /dev/sda4 should be your swap partition. Thanks to all who helped (me) get this to work properly:) -- ThinkPad X60 cannot Resume from Suspend https://launchpad.net/bugs/35174 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs