Have a PoC PPA in
https://launchpad.net/~vicamo/+archive/ubuntu/ppa-1897501 based on DMI
match on product name. But while we're still investigating the finest
way to match the problematic system, set to INCOMPLETE until ready.

** Changed in: linux (Ubuntu Focal)
       Status: In Progress => Incomplete

** Changed in: linux (Ubuntu Groovy)
       Status: In Progress => Incomplete

** Changed in: linux-oem-5.6 (Ubuntu Focal)
       Status: In Progress => Incomplete

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https://bugs.launchpad.net/bugs/1897501

Title:
  HP Zbook Studio G7 boots into corrupted screen with PSR featured panel

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Incomplete
Status in linux-oem-5.6 package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  Incomplete
Status in linux-oem-5.6 source package in Focal:
  Incomplete
Status in linux source package in Groovy:
  Incomplete
Status in linux-oem-5.6 source package in Groovy:
  Invalid

Bug description:
  Sreen divided into half after installing Focal 5.4.0-48-generic under
  Power Saving/Hybrid Graphics Mode. Normal as switched to Discrete
  Graphics Mode. Screenshot attached as
  
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1897501/+attachment/5414860/+files/20200928_135412.jpg
  .

  With some more investigatin, https://git.launchpad.net/~ubuntu-
  kernel/ubuntu/+source/linux/+git/focal/commit/?id=d246a6cfe782
  ("UBUNTU: SAUCE: drm/i915: Disable PSR by default on all platforms")
  for bug 1849947 is the root cause. This was landed to all Ubuntu
  kernels and Ubuntu only for kernel versions 5.0 and up till v5.9
  unstable currently.

  It seems this panel must have PSR enabled.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-48-generic 5.4.0-48.52
  ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
  Uname: Linux 5.4.0-48-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.9
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  gdm         964 F.... pulseaudio
  CasperMD5CheckResult: skip
  Date: Mon Sep 28 01:50:54 2020
  InstallationDate: Installed on 2020-09-22 (5 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200218)
  MachineType: HP HP ZBook Studio G7
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic 
root=UUID=ac48cfe8-5fa7-410c-ad1b-53d1e2683841 ro quiet splash vt.handoff=7
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No 
PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-48-generic N/A
   linux-backports-modules-5.4.0-48-generic  N/A
   linux-firmware                            1.187.3
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 09/18/2020
  dmi.bios.vendor: HP
  dmi.bios.version: S91 Ver. 85.28.01
  dmi.board.name: 8736
  dmi.board.vendor: HP
  dmi.board.version: KBC Version 14.32.03
  dmi.chassis.type: 10
  dmi.chassis.vendor: HP
  dmi.modalias: 
dmi:bvnHP:bvrS91Ver.85.28.01:bd09/18/2020:svnHP:pnHPZBookStudioG7:pvr:rvnHP:rn8736:rvrKBCVersion14.32.03:cvnHP:ct10:cvr:
  dmi.product.family: 103C_5336AN HP ZBook
  dmi.product.name: HP ZBook Studio G7
  dmi.sys.vendor: HP

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