Comment 2 for bug 226058

I followed the instructions at: https://wiki.ubuntu.com/DebuggingKernelSuspend

The first few times a did it, it worked. The last time, I left it suspended for longer and it failed to resume properly.
When it resumed, the mouse was missing, and the keyboard did not work. However when I pressed the power button, the screen faded and the logoff/poweroff menu came up into the center of the screen.

I could not select any of the options on this so I powered off then collected the dmesg output upon restart. The relevant lines (I think...):
[ 11.974229] registered taskstats version 1
[ 11.974396] Magic number: 0:716:241
[ 11.974400] hash matches /build/buildd/linux-2.6.24/drivers/base/power/main.c:97
[ 11.974422] hash matches device ttyse
[ 11.974503] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 11.974506] EDD information not available.

I have attached the dmesg output.
Earlier hash matches from succesful resumes were for ttypb and ttys8. Not sure what these devices are.