I've also tried following kernel versions and they are all affected:

* v5.2.8 mainline
* v5.3-rc1 mainline
* v5.3-rc2 mainline
* v5.3-rc3 mainline
* v5.3-rc4 mainline
* drm-intel-next 2019-07-31 from 
https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-next/2019-07-31/

** Description changed:

  This is an follow-up for
  https://bugs.freedesktop.org/show_bug.cgi?id-108085 but found on IceLake
  platforms.
  
  Right after GDM is login screen is rendered, there might be a thin strap
  of corrupted image at top of the display for a short while. Like f-d-o
  bug 108085, sometimes it can also be reproduced by clicking the
  date/time repeatedly to open and close the calendar several times. Etc.
+ 
+ Known work-around so far is to append kernel boot param
+ "i915.enable_fbc=0".
  
  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-5.0.0-1018-oem-osp1 5.0.0-1018.20
  ProcVersionSignature: Ubuntu 5.0.0-1018.20-oem-osp1 5.0.18
  Uname: Linux 5.0.0-1018-oem-osp1 x86_64
  ApportVersion: 2.20.9-0ubuntu7.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Aug 15 16:41:01 2019
  DistributionChannelDescriptor:
-  # This is the distribution channel descriptor for the OEM CDs
-  # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
-  canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1-loras+X14
+  # This is the distribution channel descriptor for the OEM CDs
+  # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
+  canonical-oem-somerville-bionic-amd64-20190418-59+beaver-osp1-loras+X14
  InstallationDate: Installed on 2019-08-12 (3 days ago)
  InstallationMedia: Ubuntu 18.04 "Bionic" - Build amd64 LIVE Binary 
20190418-12:10
  SourcePackage: linux-signed-oem-osp1
  UpgradeStatus: No upgrade log present (probably fresh install)

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https://bugs.launchpad.net/bugs/1840236

Title:
  Horizontal corrupted line at top of screen caused by framebuffer
  compression

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