Description of problem:

F20 Power Management Guide does not address the hooks into the sleep system provided by systemd.  Ever since p,m-utils was deprecated there have been no Fedora/RHAT resources available that discuss how to utilize the hooks into the sleep system to prevent entry into the sleep state.

Example: in the era of pm-utils (going back to what, F15?) one could write scripts to suppress the transition to S3 if a desirable network connection were established that should not be interrupted.  All that was required was to place the script in /etc/pm/sleep.d/ and have it issue a non-zero exit code if sleep should be suppressed.  When the goto sleep process prepared for sleep by executing the script, the script could deliver a non-zero exit code and prevent entry into the sleep state.

Now that pm-utils has been deprecated and replaced with systemd, Fedora now ignores any/all scripts in /etc/pm/*.  That isn't a problem.  What *IS* a problem, though, is that for the past 5 releases of Fedora, the Power Management Guide has completely ignored the topic of how to use custom scripts to prevent entry into the sleep state.  As a result, our only options are to look for help and examples in other distributions.


Version-Release number of selected component (if applicable):

F20, F21

How reproducible:

N/A.  The documentation doesn't address the problem.

Steps to Reproduce:
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Actual results:


Expected results:


Additional info: