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[Bug 1365762] Re: Screen flickers, then computer shuts down unexpectedly

 

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** Package changed: ubuntu => linux (Ubuntu)

** Changed in: linux (Ubuntu)
   Importance: Undecided => Low

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

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https://bugs.launchpad.net/bugs/1365762

Title:
  Screen flickers, then computer shuts down unexpectedly

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  I had been using Ubuntu 14.04 for a couple of months on my laptop, no
  problems.  It is a Pavilion dv6 3010us laptop, which is dual-booting
  to Windows 7 and Ubuntu.  Yesterday I noticed that my screen started
  to flicker and suddenly my computer hard shuts down like someone
  turned off the power or pulled the plug.  I can boot back up and
  operate Ubuntu for a few minutes and the exact same problem occurs.
  Sometimes it will happen in the grub boot menu.  I

  The biggest kick is that my Windows 7 is running perfectly fine
  without any of the same issues.  I was suspecting an overheat issue or
  power, but my battery is fine, everything is plugged in, and
  temperature gauges with Speedfan (Windows) and an Ubuntu temperature
  program both report temps between 48-60 degrees celcius, with the
  shutdown occuring around the 60 degree mark.

  I disassembled my laptop and got rid of some hidden doghair/dust in
  the fan thinking if it was an overheat issue that my help it.
  Unfortunately the same thing keeps happening.  After some research
  some people have suggested something about CPU Governor or some Ubuntu
  driver issue.  Perhaps the Ubuntu threshold for heat shutdown is lower
  than in Windows?  If it is a Ubuntu bug, please help!  I can't even
  operate Ubuntu to find out information if needed probably, because of
  these unexpected shutdowns.

  Here is another forum post of someone with an identical issue to me:
  http://www.linux.org/threads/screen-flickers-then-shuts-down.4825/

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