Does not occur on my Thinkpad Yoga X1, probably a driver issue.

** Package changed: systemd (Ubuntu) => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/1896736

Title:
  Black screen after resume from suspend invoked by lid close on
  Thinkpad

Status in linux package in Ubuntu:
  New

Bug description:
  I can resume my laptop without problems when suspend via window manager like 
xfce in my case. However when closing the lid the resume does not work, the 
screen remains blank when opened again while the system  is working 
(CTRL-ALT-F2 working and so on).
  Looking at Xorg.0.log shows me no action right after suspend. So it looks 
like X does not get any resume trigger when the lid is opened again. So I 
assume a problem in the signal chain whoever is responsible for this?

  Xorg.0.log excerpt:

    [  1745.027] (II) event8  - Logitech K750: device removed
    [  1745.055] (II) event15 - Logitech MX Anywhere 2: device removed
    [  1745.072] (II) event21 - MX Anywhere 2 Keyboard: device removed
    [  1745.092] (II) event22 - MX Anywhere 2 Mouse: device removed
    [  1745.139] (II) AIGLX: Suspending AIGLX clients for VT switch

  *** following section is missing when lid is opened ***

    [  1749.149] (II) AIGLX: Resuming AIGLX clients after VT switch
    [  1749.151] (II) modeset(0): EDID vendor "SDC", prod id 16705
    [  1749.151] (II) modeset(0): Printing DDC gathered Modelines:

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: systemd 245.4-4ubuntu3.2
  ProcVersionSignature: Ubuntu 5.4.0-47.51-generic 5.4.55
  Uname: Linux 5.4.0-47-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu27.8
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: XFCE
  Date: Wed Sep 23 10:57:19 2020
  InstallationDate: Installed on 2019-12-19 (278 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  MachineType: LENOVO 20QV00CEGE
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-47-generic 
root=UUID=61de670d-9f3a-4c81-830c-6139384d0e13 ro modeprobe.blacklist=nouveau 
amd_iommu=off resume=UUID=3f5116a3-c5a3-490f-b029-2388b7adac74 quiet splash 
vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 08/06/2020
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N2OET47W (1.34 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20QV00CEGE
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0T08861 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN2OET47W(1.34):bd08/06/2020:svnLENOVO:pn20QV00CEGE:pvrThinkPadX1Extreme2nd:rvnLENOVO:rn20QV00CEGE:rvrSDK0T08861WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Extreme 2nd
  dmi.product.name: 20QV00CEGE
  dmi.product.sku: LENOVO_MT_20QV_BU_Think_FM_ThinkPad X1 Extreme 2nd
  dmi.product.version: ThinkPad X1 Extreme 2nd
  dmi.sys.vendor: LENOVO
  modified.conffile..etc.systemd.resolved.conf: [modified]
  mtime.conffile..etc.systemd.logind.conf: 2020-09-23T10:22:54.440796
  mtime.conffile..etc.systemd.resolved.conf: 2020-06-01T22:34:53.022126

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