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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1762112

and then change the status of the bug to 'Confirmed'.

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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1762112

Title:
  black screen after swith intel  graphic card

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  I have a laptop(dell gaming 5577: intel i7-7700hq and nvidia gtx1050)
  and installed ubuntu 16.04.4 LTS, I installed non-free nvidia driver
  and intel mircocode. If I use nvidia graphic card, it is normal, but
  when I switch to intel graphic card thru prime, then logout, it will
  black screen and keyboard, mouse is no response, laptop should be
  crash. Reboot is same too. How should I solve it?

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