Public bug reported:

This bug might be related to 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553503 
However, there are minor differences.

The dual monitor support worked with Ubuntu 16.04

This affects Ubuntu 16.10. 
- Kernel Linux 4.8.0-17-generic
- VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
- CPU: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz

The issue manifests in multiple ways:
a) When moving the mouse from one screen to another, on the leaving screen an 
area in the upper left corner approx. 6 by 6 cm (on an 20" screen) flashes 
(dark).
b) In case the mouse is on the left screen
- I move it to the right (the screen flashes) 
- I select a text editor component (the screen flashes or the screen turns 
black for at least a second)
- I type text (the screen flashes once or the screen turns black for at least a 
second)

I tested this behavior with Ubuntu's Unity desktop and gnome-shell. It
does not appear when switching between screens on the login screen.
However ,ti does appear in case I use the switch user to get another
login screen.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: Incomplete

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https://bugs.launchpad.net/bugs/1628506

Title:
  Dual monitor - screen flashes and turns black on mouse movement and
  keyboard input

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This bug might be related to 
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553503 
  However, there are minor differences.

  The dual monitor support worked with Ubuntu 16.04

  This affects Ubuntu 16.10. 
  - Kernel Linux 4.8.0-17-generic
  - VGA compatible controller: Intel Corporation HD Graphics 530 (rev 06)
  - CPU: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz

  The issue manifests in multiple ways:
  a) When moving the mouse from one screen to another, on the leaving screen an 
area in the upper left corner approx. 6 by 6 cm (on an 20" screen) flashes 
(dark).
  b) In case the mouse is on the left screen
  - I move it to the right (the screen flashes) 
  - I select a text editor component (the screen flashes or the screen turns 
black for at least a second)
  - I type text (the screen flashes once or the screen turns black for at least 
a second)

  I tested this behavior with Ubuntu's Unity desktop and gnome-shell. It
  does not appear when switching between screens on the login screen.
  However ,ti does appear in case I use the switch user to get another
  login screen.

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