Power Management: Difference between revisions

m Added a header to highlight systemctl cancel
Clarified that solutions may vary when troubleshooting a blocked pre-sleep.service
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The <code>pre-sleep-start</code> script referenced by <code>ExecStart</code> contained directives installed by the [[Displaylink]] package, that contained a flush operation which hung the suspend action. Starting <code>dlm.service</code> or running <code>sudo DisplayLinkManager</code> unblocks the script and made suspend work normally.  
In this case, the <code>pre-sleep-start</code> script referenced by <code>ExecStart</code> contained directives installed by the [[Displaylink]] package, that contained a flush operation which hung the suspend action. Starting <code>dlm.service</code> or running <code>sudo DisplayLinkManager</code> unblocks the script and made suspend work normally.  


==== Cancelling an existing suspend action ====
==== Cancelling an existing suspend action ====