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[Bug 1561729] Re: [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe A FIFO underrun

 

Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.5 kernel[0].

If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag:
'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as
"Confirmed".


Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-wily/

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

** Tags added: kernel-da-key xenial

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https://bugs.launchpad.net/bugs/1561729

Title:
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  A FIFO underrun

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  Hey Guys,

  i am encountering some random screen flickering after i launched
  google-chrome. this persists even after closing chrome. it is like the
  screen wents black for a fracture of a second.

  when it happens dmesg reports:
  [drm:intel_cpu_fifo_underrun_irq_handler [i915_bpo]] *ERROR* CPU pipe
  A FIFO underrun

  I am currently on Ubuntu 1604 Daily:

  Description:	Ubuntu Xenial Xerus (development branch)
  Release:	16.04

  PS: It is a Dell XPS 13 9530 with no external display attached.
  The internal display is an FHD one

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