I get the same thing.
After logging out the system drops into a console for a split second.
There doesn't seem to be any log output that would be of value either.
That or I'm not checking in the right places..
I'm on a HP Pavilion dv4170ca Laptop.
Graphics: Intel(R) Graphics Media Accelerator 900
I get the same issue when attempting to hibernate with my HP Pavilion
dv4170ca Laptop.
After comparing the two lspci printouts it looks like the hardware is
very similar.
** Attachment added: "lspci.txt"
http://launchpadlibrarian.net/12952319/lspci.txt
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hibernate/resume not working on Tosh