Hibernation causes crashing on an Acer Aspire [closed]
I am a beginner for ubuntu itself and I don't know whether I am right, but it looks like that there might be a compatibility issue with a hardware or a setting in your bios. I would recommend to check your bios settings and make sure that you have your ACPI settings (I don't know how to do it yet in Ubuntu, but I'll update my post on the moment I discover). A simple device on your usb port or a new driver on one of the peripherals can cause this. If you have hardware that needs proprietary drivers, you might need to update them too. Also, check the ACPI settings and set it to S3.
Maybe this can help: http://www.ubuntugeek.com/fix-for-suspend-and-hibernation-problem-for-laptops.html
Also, it might be a little bit useful for the more experts if you provide your hardware and software information. Also, state your bios type (Phoenix or American trends or xEFI).