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[Simon Fels <simon.busch@xxxxxxxxxxxxx>]

For a mouse and a keyboard this for sure intended. Both act as input
device like the power key and therefore can activate the device. For
example when I have the tablet or the phone working as a converged
device I as a user want the device to go to sleep when I wake up but be
back when I active either one of those input devices (power-button,
mouse or keyboard).

That the device wakes up from a deep-sleep is something we can't prevent
and really shouldn't. If I turn on my paired headset I expect it to be
usable no matter what state the other device is in. So connection
establishment is fine here.

What we should fix is the use of the proximity sensor or other sensors
to find out if the device is in a state where a turned on display is
intended (like it being in your pocket or somewhere else).

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Packages, which is subscribed to bluez in Ubuntu.
https://bugs.launchpad.net/bugs/1552371

Title:
  Bluetooth connection turns on the device

Status in Canonical System Image:
  Confirmed
Status in bluez package in Ubuntu:
  New
Status in unity8 package in Ubuntu:
  New

Bug description:
  I have been noticing my phone and tablet occasionally turning on without interaction. Several times with my phone in my pocket I found it in the emergency call UI
  I also see the tablet display turn on while lying idle on the desk.

  I have reproduced one case such that turning on a BT device (headset)
  causes the phone to light up and display the volume slider. Similarly
  turning on the BT keyboard while the tablet screen is off caused the
  display to turn on.These may be as intended.

  I suspect other BT events can similarly resume the device and/or turn on the display if it happens to be awake due to the 5 min polling timer.
  The proximity sensor is also not honored when this happens, if its covered the screen still comes on.

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