I seem to be able to hibernate OK using s2disk, but when I switch the laptop back on, it seems to hang half-way through the "resuming" menu. The splash screen looks healthy, it seems to be trying to resume from the correct disk, but it hangs about half-way through, with three little pips.
One great help would be – where can I find the logs, and how do I get more verbose ones?
There is some info in /var/log/pm-suspend.log, but that all seems fine, just lots of hibernate: success messages…
How do I switch on more verbose logging in s2disk? And what about the resume process, where are the logs for that, and how can I make them more detailed?
Background: the standard Ubuntu hibernate wouldn't work, so I've install uswusp and its associated tools – s2disk etc. That initially made things worse, but a fair amount of fiddling with its config, my swap size and so on seem to have got it at least seemingly successfully suspending…
[update] some config info:
RAM: 8GB
swap space: 8.63GiB (NB i did try increasing swap to 16GB, didn't help)
$ sudo blkid
/dev/sda: TYPE="isw_raid_member"
/dev/zram0: UUID="45e58d74-be57-4ad4-95de-217e9ba7d087" TYPE="swap"
/dev/sdb: TYPE="isw_raid_member"
/dev/mapper/isw_dgibfidibf_Volume0p1: LABEL="Ubuntu" UUID="7ca86fcb-a969-45d5-b67f-fe29bc568f4d" TYPE="ext4"
/dev/mapper/isw_dgibfidibf_Volume0p2: LABEL="System Reserved" UUID="2A1A38861A3850D5" TYPE="ntfs"
/dev/mapper/isw_dgibfidibf_Volume0p3: LABEL="Windows" UUID="FE6C39286C38DD59" TYPE="ntfs"
/dev/mapper/isw_dgibfidibf_Volume0p5: UUID="dfb8af38-acf1-42be-be18-131d326a21ff" TYPE="swap"
/dev/mapper/isw_dgibfidibf_Volume0p6: LABEL="SHARED" UUID="10BA-FE58" TYPE="vfat"
$ cat /etc/initramfs-tools/conf.d/resume
RESUME=/dev/mapper/isw_dgibfidibf_Volume0p5
[update 2] – have followed instructions at https://wiki.ubuntu.com/DebuggingKernelSuspendHibernateResume
and submitted a bug report: https://bugs.launchpad.net/ubuntu/+source/hibernate/+bug/987109
Best Answer
try removing cryptsetup from your system, worked for me.