Created attachment 622691 [details]
pm-suspend.log, sections of journal and Xorg.0.log for failed hibernation/thaw

When i suspend to disk and resume, resume sometimes works and sometimes does
not.  The determining factor appears to be the amount of time that is between
the completion of the suspend and when it is resumed.  If i try to resume
immediately after suspend, the resume is always successful; if the resume is a
couple of hours after the suspend completes (not clear exactly how long is
required), the resume fails.

Prior to upgrading to SuSE 13.2, i was able to successfully hibernate/resume on
this machine many times after long suspensions, even suspensions of days.  I am
less certain of how well this worked on 13.1, because i did not use the machine
much when it had SuSE 13.1 on it, but it worked extremely well for many months
with SuSE 12.3.  The differences between 13.2 and previous releases is that i
put in 2 new hard drives and did a fresh install onto a RAID1 configuration
using BTRFS, whereas previously it had been an ext4 boot drive, no RAID.

I am using GRUB2 with MBR for the boot loader.

The pm-suspend log shows the final stages of hibernation being executed, but
there does not appear to be any thaw steps executed.  When the thaw is
performed, i see some variation of video output; sometimes i see a very faint
image of the background shown when booting from shutdown, sometimes that same
image flashes briefly at full strength and others there is no apprent video,
but there is a signal (my monitor detects no signal and reports this).  The
machine does not show up on my router's network map, so the network does not
appear to be active after the thaw.

I have attached a file with segments, or entire file contents of the following:
- pm-suspend.log for failed hibernate/thaw (entire file)
- journal entries for failed hibernate/thaw
- journal entries for successful hibernate/thaw
- Xorg.0.log showing both successful and unsuccessful hibernate/thaw (entire
file)