Comment # 14 on bug 935086 from Uwe Geuder

(In reply to Takashi Iwai from comment #13)

> Could you try one more test?

No problem, I'm glad to getting this solved.

> Please reinstall suspend and pm-utils but
> change SLEEP_MODULE to "kernel" in pm-utils default.  Does this make resume
> working again?

Just to clarify: Removing pm-utils was something I tried without success in a
previous installation of 13.2. For the whole lifetime of this report pm-utils
has always been installed.

I re-installed the suspend package and created a configuration file like this:

$ cat /etc/pm/config.d/sleepmodule.config 
SLEEP_MODULE="kernel"

Resume works without hanging. The suspend hooks are executed as shown in the
attached log file. E.g. grubonce suppresses the usual grub menu when waking up
from hibernation. That suppression was not there while suspend package was
uninstalled. 

However, I notice the following issues

1. I made 5 hibernate cycles. In one of the 5 the machine crashed and rebooted
during the resume. Obviously at the reboot no valid snapshot was found anymore,
so a fresh boot occurred. No traces where left in the logs what has happened.
So it probably happened shortly before, during, or short after switching to the
real root file system and no information could be stored to the filesystem.
I don't have time now to make more reliable statistics how often that really
happens. But while using the rd.break-premount work-around it has not happened
during ~3 months, some 50-100 resumes.

2. There is no plymouth screen during hibernation. Instead there is flickering
and console messages are visible. As said before, not a showstopper for me, but
a regression from 13.1