I can't figure this one out. Whenever I am resuming from suspend or hibernate, the system appears to wake up properly - hibernate takes a little while to resume, suspend brings back the desktop quite quickly - and then everything freezes for about 15 seconds. After it has had its fun and frozen for a little while, it wakes up and pretends nothing happened. Also, the desktop I see during the freeze usually has a black box in the center the shape and size of the "Shut Down the Computer" box, which I always bring up in order to suspend or hibernate. This box disappears after the freeze ends.
Any ideas? I've looked through the logs and haven't found any clues, but if there's a log that would be useful to see, please let me know.
Oh, I'm running a fully updated 9.10 on a Dell Inspiron 6400 laptop.