If there is any more info I can provide, please let me know.

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  Display Port issues - screen blackouts

Status in linux package in Ubuntu:

Bug description:
  I use a Philips BDM4037U 40'', 4k monitor.
  Connecting it via DP to my Lenovo 910 4k gives me random blackouts.

  It appears to me that this mostly happens after some time of work,
  also more likely when the CPU has to handle more than average load,
  sooner in 30Hz than in 60Hz mode. But it happens for sure after some
  time, each day.

  I was unsure if this is a problem with the monitor itself (although when 
connected via HDMI this isn't an issue).
  I found similar bug reports for Windows, where it was suggested to update the 
  My laptop has updated everything - a current BIOS (which dates back to June 
2017 or so), updated Windows, latest Ubuntu.
  The same problem existed in 17.10, with x-org and Wayland sessions.

  Note, there is another issue with this monitor filed by me, but
  unrelated AFAIK:

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: linux-image-4.15.0-13-generic 4.15.0-13.14 [modified: 
  ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
  Uname: Linux 4.15.0-13-generic x86_64
  ApportVersion: 2.20.9-0ubuntu4
  Architecture: amd64
   /dev/snd/controlC0:  thet       1429 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Apr 11 12:07:06 2018
  HibernationDevice: RESUME=UUID=bedd1248-32dd-43ca-be9f-28337086ea86
  InstallationDate: Installed on 2018-04-09 (1 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Beta amd64 (20180404)
  MachineType: LENOVO 80VF
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-13-generic.efi.signed 
root=UUID=998520ff-c841-45ab-8312-2bb876ae2a0b ro quiet splash vt.handoff=1
   linux-restricted-modules-4.15.0-13-generic N/A
   linux-backports-modules-4.15.0-13-generic  N/A
   linux-firmware                             1.173
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/31/2017
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 2JCN39WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: Agera
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 31
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo YOGA 910-13IKB
  dmi.product.family: IDEAPAD
  dmi.product.name: 80VF
  dmi.product.version: Lenovo YOGA 910-13IKB
  dmi.sys.vendor: LENOVO

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