My newly installed Ubuntu 15.10 can not enter hibernation.
The PC has 4gb ram, and the swap partion is 4 GB (but when I check the real size of the /linux-swap partion, I found out it is only 3.73 GB!), so is it the reason that the Ubuntu can not enter hibernation?
How big should the swap partition be so that the system can enter hibernation? Or is there other way to do the same trick? How difficult is to enlarge the swap partition size?
The following shows partitions of my hard drive. Unfortunately there is no unallocated partition around the /swap partition. (showed between sda3 (which is / partion) and sda2 (which is a windows extended NTFS partition, almost empty). Is there a way to cut several GB from the neighbor partitions to add to the swap partition? Thank you.
Here is a screenshot:
Try to increase swap in such way https://www.digitalocean.com/community/tutorials/how-to-add-swap-on-ubuntu-14-04 . It is pretty easy and safely. Then test hibernate or etc. Maybe reason of your problem not in swap size.