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[Bug 1430855] Re: [i915_bdw] fix GPU hangs on startup with BDW GT3

 

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-trusty

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https://bugs.launchpad.net/bugs/1430855

Title:
  [i915_bdw] fix GPU hangs on startup with BDW GT3

Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Trusty:
  Fix Committed

Bug description:
  Broadwell cpu's with Iris graphics fail to boot up properly, the GPU
  hangs on X startup. This is fixed since 3.16, and it needs a single
  commit to i915_bdw driver:

  commit 1d2866baf71e222308345ec745c20cbdb279f325
  Author: Ben Widawsky <benjamin.widawsky@xxxxxxxxx>
  Date:   Fri Apr 18 18:04:28 2014 -0300

      drm/i915/bdw: enable eDRAM.

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