Vlad, a couple of points:

This machine has a lot of memory (more than 1GB, as far as I can tell
from reading your logs) but it does not have very much swap (less than
0.5GB). swap space can be used for hibernation - would it be possible
for you to add more swap space (if you have enough free disk space) so
that you have at least as much swap space as memory?

It might be useful to boot with "quiet" disabled, so that we get
complete logs. Try the following:

1. start a terminal window and run the command

    sudo logrotate -f

2. Reboot the machine;

3. When the grub menu appears, use the arrow keys to move to the first
entry in the list (if there is no menu, hit esc when the "grub loading"
line appears - this will have a countdown timer, typically a few
seconds).

4. type e to edit the boot options

5. use the arrow keys to select the kernel line (second line, usually)

6. type e to edit the kernel options

7. use the arrow keys to get to "quiet" and the backspace or delete key
to erase the word quiet

8. hit esc

9. type b to boot the system

10. when you get to your regular user session, hibernate the machine

11. either resume of reboot - just reboot normally

12. attach /var/log/syslog to this report - please refer to
https://wiki.ubuntu.com/DebuggingUbiquity/AttachingLogs.  Please DO NOT
put the log file in the body of the comment, this makes it very
difficult to read the bug report.


** Changed in: acpid (Ubuntu)
       Status: Unconfirmed => Needs Info

-- 
Uniwill 258KA doesn't resume after suspend/hibernation
https://launchpad.net/bugs/72417

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