I built Artful and Bionic test kernels with commit 
f212bf9abe5de9f938fecea7df07046e74052dde.  The test kernel can be downloaded 

Can you test this kernel and see if it resolves this bug?

Note, to test this kernel, you need to install both the linux-image and
linux-image-extra .deb packages.

Thanks in advance!

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  Dell Latitude 5490/5590 BIOS update 1.1.9 causes black screen at boot

Status in linux package in Ubuntu:
Status in linux source package in Artful:
Status in linux source package in Bionic:

Bug description:
  Description:    Ubuntu 16.04.4 LTS
  Release:        16.04

  Ubuntu 16.04.4 LTS was installed to some Dell Latitude 5490 & 5590
  laptops, originally running BIOS version 1.0.8. The install media and
  the installed OS was running linux-generic-hwe kernel 4.13.0.

  After upgrading BIOS to latest version 1.1.9, the kernel no longer
  boots: right after loading the i915 drm driver, the screen goes black,
  and the machine can only be reset or power cycled. This is true for
  both the installation media, and the OS instance previously installed
  to the disk and updated to the latest hwe kernel 4.13.0-38.

  Specifying 'nomodeset' on the kernel command line works around the
  problem by disabling the i915 drm driver functionality. In that case,
  several display driver function are obviously missing (eg GLX &

  The problem manifested itself even when using the drm upstream latest 
git-head version. A custom built kernel was used to provide logs for this 
upstream bug report:

  The upstream Intel developers provided a patch, which was successfully tested 
by both the original reporter and me.

  I backported this fix to ubuntu-xenial hwe git-head, and tested the
  result successfully. I'd like this fix to be added to the ubuntu-
  xenial linux-generic-hwe kernel.

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