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[c2h5oh <c2h5oh@xxxxxxxxx>]

Still happening in Yakkety.

Some observations: 
- waiting to unlock until 2nd screen wakes seems to help. Not sure if 100% effective
- sometimes, but not always, screws up HiDPI for windows that got moved between screens (I've got different settings on each)

Both of those seem to suggest a race: location and dpi for a window are
being updated based on primary (with launcher) display data, when
reconnect happens and primary display is suddenly a different device
with different characteristics & settings.

My setup:
- Intel Graphics (Iris Pro)
- Laptop display (eDP1)
- 4k monitor (DP1) that is my primary (with launcher) one

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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:
  Fix Released
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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