** Summary changed:

- booting with splash hangs when external monitors are connected (pure intel 
laptop)
+ booting with splash hangs when external monitors are connected (pure intel 
8th gen laptop)

** Description changed:

+ I think this is a problem with the splash boot loader. This problem is
+ not reproduced if using nosplash.
  
- I think this is a problem with the splash boot loader.
+ I have installed 20.04 to this laptop. Thinkpad T480, i7, intel
+ graphics.
  
- I have installed 20.04 to this laptop. Clean install, not an upgrade.
+ Clean install of 20.04 beta, not an upgrade.
  When booting from the install, the greeter screen is never reached if 
external monitors are connected at startup.
- I get the spinning ubuntu logo, and nothing more. I can not change to virtual 
terminals.
+ I get the spinning ubuntu logo, and nothing more. I can not change to virtual 
terminals. The fsck step does not commence.
+ 
  In recovery mood, I can log in.
- I am used to having such problems with Nvidia graphics is involved, but this 
is not the case on this laptop. It has been happily running 18.04.
+ 
+ With no external monitors attached, it works.
+ 
+ I am used to having such problems with Nvidia graphics is involved, but
+ this is not the case on this laptop. It has been happily running 18.04.
  
  External displays are recognised if they are connected after login.
  
  Also, when I edit /etc/default/grub so that it reads
  GRUB_CMDLINE_LINUX_DEFAULT=""
  (that is, splash disabled)
  it works fine with two external monitors attached.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: xorg 1:7.7+19ubuntu14
  ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
  Uname: Linux 5.4.0-21-generic x86_64
  ApportVersion: 2.20.11-0ubuntu26
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: skip
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Apr 11 13:58:19 2020
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroVariant: ubuntu
  DkmsStatus:
-  acpi-call, 1.1.0, 5.4.0-21-generic, x86_64: installed
-  tp_smapi, 0.43, 5.4.0-21-generic, x86_64: installed
+  acpi-call, 1.1.0, 5.4.0-21-generic, x86_64: installed
+  tp_smapi, 0.43, 5.4.0-21-generic, x86_64: installed
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
-  Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA 
controller])
-    Subsystem: Lenovo UHD Graphics 620 [17aa:225d]
+  Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA 
controller])
+    Subsystem: Lenovo UHD Graphics 620 [17aa:225d]
  InstallationDate: Installed on 2020-04-10 (0 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
  MachineType: LENOVO 20L5S00F00
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic 
root=/dev/mapper/myvg-root ro
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 02/19/2020
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N24ET56W (1.31 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20L5S00F00
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Defined
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN24ET56W(1.31):bd02/19/2020:svnLENOVO:pn20L5S00F00:pvrThinkPadT480:rvnLENOVO:rn20L5S00F00:rvrNotDefined:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad T480
  dmi.product.name: 20L5S00F00
  dmi.product.sku: LENOVO_MT_20L5_BU_Think_FM_ThinkPad T480
  dmi.product.version: ThinkPad T480
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.101-1
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.4-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20190815-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

-- 
You received this bug notification because you are a member of Ubuntu-X,
which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1872159

Title:
  booting with splash hangs when external monitors are connected (pure
  intel 8th gen laptop)

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