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apport-collect 1857418

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This change has been made by an automated script, maintained by the
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** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1857418

Title:
  KDE Panel disappears after screen lock

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hello!

  I use ubuntu 18.04. 
  Kernel Ubuntu 4.15.0-73.82+lp1854798+2-generic 4.15.18 (problem exists on 
previous kernels too)
  KDE from the repo
  Screen is extended to external monitor
  laptop Lenovo Carbon 6x
  Monitor attached with HDMI 
  Monitor model: Acer H236HL

  When the screen is locked by timeout, after unlocking by entering
  password, KDE panel disappears on external monitor. I can not add a
  panel to it, e.g. I add it to screen but the panel does not appear.
  After reboot panel is in place. If I have added panels to screen they
  are also exist.

  It is interesting that this problem exists with only my monitor. Other
  monitors attached to my laptop work OK. The problem also does not
  exist if I turn my monitor off before screen lock.

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