Comment 52 for bug 1295267

Same here with Gnome Classic (upgraded 15.10 to 16.04) :(

When I unlock the system I find the desktop configuration changed:
 - Terminator's window changes from the external screen to the built-in
 - same for the application bar

Some info about my config:

Toshiba PORTEGE Z30-B-11G with Intel® HD 5500

$ lspci -vnn | grep VGA -A 12
00:02.0 VGA compatible controller [0300]: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller])
 Subsystem: Toshiba America Info Systems Broadwell-U Integrated Graphics [1179:0005]
 Flags: bus master, fast devsel, latency 0, IRQ 48
 Memory at f0000000 (64-bit, non-prefetchable) [size=16M]
 Memory at e0000000 (64-bit, prefetchable) [size=256M]
 I/O ports at 3000 [size=64]
 Expansion ROM at <unassigned> [disabled]
 Capabilities: <access denied>
 Kernel driver in use: i915
 Kernel modules: i915

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$lshw -C display:

  *-display
       descripción: VGA compatible controller
       producto: Broadwell-U Integrated Graphics
       fabricante: Intel Corporation
       id físico: 2
       información del bus: pci@0000:00:02.0
       versión: 09
       anchura: 64 bits
       reloj: 33MHz
       capacidades: msi pm vga_controller bus_master cap_list rom
       configuración: driver=i915 latency=0
       recursos: irq:48 memoria:f0000000-f0ffffff memoria:e0000000-efffffff ioport:3000(size=64)

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Xorg.0.log:

[111189.451] (II) intel(0): resizing framebuffer to 1920x1080
[111199.862] (II) intel(0): resizing framebuffer to 4480x1440
[111199.886] (II) intel(0): switch to mode 2560x1440@60.0 on HDMI2 using pipe 0, position (1920, 0), rotation normal, reflection none
[111200.133] (II) intel(0): switch to mode 1920x1080@59.9 on eDP1 using pipe 1, position (0, 0), rotation normal, reflection none

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