Cannot "sleep" or "hibernate" my Thinkpad X61 Tablet
If I try to "sleep" or "hibernate" my Thinkpad tablet running Ubuntu Karmic, all I get is a blinking "new moon" LED and cannot wake my system without a full power-off.
I have 4GB system RAM and do not have a swap file or partition. Is that a requirement for "sleep" or "hibernate?" Are there other configuration requirements that I don't know about [very likely]?
Both "sleep" and "hibernate" worked fine under Ubuntu Hardy.