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

[Платонов Николай]

I can confirm this bug too. Using MSI GS 73 with Ubuntu 18.04.2 + latest official kubuntu desktop.
The notebook has 4k display and I'm using external dispaly LG 27UL850-W, which is 4k too.

As it was mentioned in the thread, it seems to be related to the "Screen
energy saving" checkbox in the "Power managment settings". Once the
timeout for this option passes both displays goes to power saving mode
and becomes blank black. After you resume a session by moving a mouse,
you can actually notice, how all windows first goes to the laptop
display, then, all windows moves to external display.

This is a MAJOR usability bug. Need to manually re-position all windows
again and again.

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https://bugs.launchpad.net/bugs/1573345

Title:
  Dual monitor loses settings after screen sleep

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