Hbernation doesn't work in Kubuntu 12.04

[The Liquidator]

Hi all

Just noted that my laptop (Dell 630m centrino) does not hibernate in 12.04. All power settings correctly configured but on closing the lid or hitting the hibernate button in the power widget results in ....nothing at all happening. I can't understand it. With this, and the wireless problem I have posted elsewhere, I am asking myself whether I have reached the stage where upgrades to the OS will be less and less compatible with my computer. Hope not, as it's otherwise working really well.

Any tips on what I can do to try and diagnose this?

Thanks

[vw72]

My Asus eee PC hibernates running 12.04. Maybe it's something specific to the 630m. Do you have a swap file? You might also try asking on the Ubuntu forums, because the hibernate function is below the desktop level.

[The Liquidator]

Thanks

Yes I have always used a swap partition and the machine always hibernated fine until I upgraded to 12.04. I'll check at the ubuntu forum.