[Bug 1573345] Re: Dual monitor loses settings after screen sleep

[Mike]

Kubuntu 16.04, KDE plasma 5.5.5, Qt 5.5.1

Using Sky Lake Integrated Graphics with driver=i915_bpo
 
Using dual monitors with different configurations and resolutions. On waking the screens the desktop shown on HDMI2 monitor crashes. The background is black and the KDE panel is gone. The primary display is unaffected. I am still able to run application windows on the crashed desktop and the app windows will take up the space of the missing panel. To resolve I run 

killall plasmashell; sleep 3; plasmashell

This brings the desktop wallpaper and panel back as expected and
application windows on the crashed desktop will resize to fit the panel.

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Title:
  Dual monitor loses settings after screen sleep

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