Happening on updated 14.04. Two identical Dell monitors (1920x1080), one
connected using DVI->HDMI and other using DP->MiniDP (additionally a
laptop screen which is disabled when using the monitors).
When the computer is on lock screen/sleeps long enough, the secondary
monitor (DP-connected) loses windows and they are shifted to my primary
screen when logging back in. I mostly use the Gnome terminal only on the
secondary screen so it may or may not be directly related to the
terminal software.
This started occurring just last week after our office moved and I
plugged my monitors back to my laptop docking station. So one thing I
need to try now is to switch the screens around and see whether that
changes anything (in case the OS has some kind of a memory regarding
actual _hardware_ which was previously plugged in).
Before the office change my screens and the OS operated normally and
sleep/lock worked OK.
GPU is a mobile Radeon (using open-source drivers) on a Dell laptop,
through the Dell docking station.
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https://bugs.launchpad.net/bugs/1295267
Title:
Windows change Monitor/Desktop after screen lock
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