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[Otto Rask <ojrask@xxxxxxxxx>]

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

Status in Unity:
  Fix Released
Status in Unity 7.1 series:
  Fix Released
Status in compiz-plugins-main package in Ubuntu:
  Confirmed
Status in unity package in Ubuntu:
  Triaged

Bug description:
  I run a dual monitor configuration, with one portrait and one
  landscape.

  I nearly always have multiple applications open in multiple windows
  across both monitors and all virtual desktops.

  When I lock the screen and then unlock, my application windows will
  move from their original position.

  Sometimes they are in completely random positions;

  Other times they seem to get the monitors confused, and rather than
  being in the top half of the portrait monitor they are on the top half
  of the landscape monitor;

  Sometimes it is only a new desktop, but the monitor position is the
  same;

  Sometimes it is the same desktop, but on the other monitor.

  Description:	Ubuntu 13.10
  Release:	13.10

  What I expect to happen: When I unlock my computer, all the windows
  are in the same position on the same monitor and desktop as I left
  them.

  What actually happens: When I unlock my computer, some or all of the
  windows have been changed to a random position on a random monitor
  and/or desktop.

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