[kde] [Bug 400173] New: Upon wake from sleep external monitors are no longer detected.

[James]

https://bugs.kde.org/show_bug.cgi?id=400173

            Bug ID: 400173
           Summary: Upon wake from sleep external monitors are no longer
                    detected.
           Product: kde
           Version: unspecified
          Platform: Neon Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: schlinkhaus at gmail.com
  Target Milestone: ---

SUMMARY

When waking from sleep external monitor is not recognized.
Using thunderbolt to display port connector.  Must reboot machine for monitor
to become available.  External display is not recognized at any time if not
plugged in before boot.


STEPS TO REPRODUCE
1. Let computer go to sleep.
2. 
3. 

OBSERVED RESULT
Computer wakes only laptop screen.  External monitor is not recognized until
reboot.

EXPECTED RESULT
Wake computer and all screens become available.

SOFTWARE VERSIONS
(available in About System)
KDE Plasma Version: 5.14
KDE Frameworks Version: 5.51.0
Qt Version: 5.11.2

ADDITIONAL INFORMATION
Laptop: MacBook Pro 11,5 (Mid 2015) 
Monitor make and model: HP 27" Z27X 
Connection: Thunderbolt to Display Port  (Laptop <-> Monitor)

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