Plymouth Never hands off to Xorg "freeze" no boot, until interrupted.

[Some User]

Plymouth never returns from startup. Startup takes intermittently long periods of time.

someuser@someuser-l01:~$ systemd-analyze blame | cat
25.226s accounts-daemon.service
25.173s udisks2.service
25.150s gpu-manager.service
25.149s networkd-dispatcher.service
25.129s snapd.service
25.125s systemd-logind.service
25.092s ModemManager.service
25.079s iio-sensor-proxy.service
 3.787s plymouth-quit-wait.service
 1.856s upower.service
  427ms dev-nvme0n1p2.device
  356ms dev-loop1.device
  350ms dev-loop2.device
  313ms dev-loop3.device
  312ms dev-loop4.device
  229ms systemd-resolved.service
  207ms systemd-rfkill.service
  168ms rtkit-daemon.service
  132ms snap-snap\x2dstore-433.mount
  131ms snap-snapd-7264.mount
  130ms snap-gtk\x2dcommon\x2dthemes-1506.mount
  115ms systemd-timesyncd.service
  114ms avahi-daemon.service
   96ms polkit.service
   94ms snap-core18-1705.mount
   93ms snap-gnome\x2d3\x2d34\x2d1804-24.mount
   92ms apport.service
   92ms systemd-udev-trigger.service
   90ms e2scrub_reap.service
   84ms dev-loop0.device
   75ms systemd-journald.service
   73ms switcheroo-control.service
   71ms [e-mail]
   70ms swapfile.swap
   69ms keyboard-setup.service
   68ms thermald.service
   68ms grub-common.service
   67ms wpa_supplicant.service
   63ms [e-mail]
   57ms systemd-udevd.service
   46ms kerneloops.service
   43ms apparmor.service
   41ms grub-initrd-fallback.service
   41ms alsa-restore.service
   41ms rsyslog.service
   37ms secureboot-db.service
   35ms systemd-journal-flush.service
   35ms systemd-fsck@dev-disk-by\x2duuid-9979\x2d84D8.service
   33ms openvpn.service
   33ms snapd.seeded.service
   32ms systemd-backlight@backlight:intel_backlight.service
   32ms systemd-backlight@leds:dell::kbd_backlight.service
   31ms systemd-update-utmp-runlevel.service
   30ms bluetooth.service
   30ms systemd-user-sessions.service
   29ms gdm.service
   29ms snapd.apparmor.service
   28ms packagekit.service
   27ms plymouth-start.service
   25ms pppd-dns.service
   25ms systemd-tmpfiles-setup.service
   20ms systemd-modules-load.service
   20ms NetworkManager.service
   15ms colord.service
   12ms plymouth-read-write.service
   10ms <email address hidden>
   10ms dev-hugepages.mount
    9ms setvtrgb.service
    9ms systemd-sysctl.service
    9ms dev-mqueue.mount
    9ms systemd-random-seed.service
    9ms systemd-sysusers.service
    9ms systemd-tmpfiles-setup-dev.service
    9ms sys-kernel-debug.mount
    8ms boot-efi.mount
    8ms sys-kernel-tracing.mount
    8ms [e-mail]
    8ms systemd-remount-fs.service
    8ms systemd-update-utmp.service
    7ms [e-mail]
    6ms kmod-static-nodes.service
    6ms console-setup.service
    3ms sys-fs-fuse-connections.mount
    3ms sys-kernel-config.mount
    2ms ufw.service
    1ms snapd.socket

Only able to boot if I interrupt plymouth, and manually wait out systemd targets.
When booted with multiple screens, constant graphical corruption and distortion is seen.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Aug 3 17:28:16 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GpuHangFrequency: Continuously
GpuHangReproducibility: Yes, I can easily reproduce it
GpuHangStarted: Immediately after installing this version of Ubuntu
GraphicsCard:
 Intel Corporation HD Graphics 630 [8086:591b] (rev 04) (prog-if 00 [VGA controller])
   Subsystem: Dell HD Graphics 630 [1028:080d]
   Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Polaris 22 XL [Radeon RX Vega M GL] [1002:694e]
InstallationDate: Installed on 2020-08-03 (0 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. XPS 15 9575
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=ea1ef229-ef86-4657-909b-498914de360e ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/10/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.0
dmi.board.name: 0C32VW
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.2.0:bd10/10/2018:svnDellInc.:pnXPS159575:pvr:rvnDellInc.:rn0C32VW:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 15 9575
dmi.product.sku: 080D
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.2
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+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Some User (jon2kx)]

Didn't realize bootlog was perm denied. Here is the text:

------------ Mon Aug 03 17:02:58 EDT 2020 ------------
[ OK ] Started Show Plymouth Boot Screen.
[ OK ] Started Forward Password Requests to Plymouth Directory Watch.
[ OK ] Reached target Local Encrypted Volumes.
[ OK ] Started Journal Service.
         Starting Flush Journal to Persistent Storage...
[ OK ] Finished Flush Journal to Persistent Storage.
[ OK ] Listening on Load/Save RF …itch Status /dev/rfkill Watch.
[ OK ] Found device KXG50ZNV256G …GB EFI\x20System\x20Partition.
         Starting File System Check…/dev/disk/by-uuid/9979-84D8...
[ OK ] Started File System Check Daemon to report status.
[ OK ] Finished File System Check…n /dev/disk/by-uuid/9979-84D8.
         Mounting /boot/efi...
[ OK ] Mounted /boot/efi.
[ OK ] Reached target Local File Systems.
         Starting Load AppArmor profiles...
         Starting Set console font and keymap...
         Starting Tell Plymouth To Write Out Runtime Data...
         Starting Commit a transient machine-id on disk...
         Starting Create Volatile Files and Directories...
[ OK ] Finished Set console font and keymap.
[ OK ] Finished Tell Plymouth To Write Out Runtime Data.
[ OK ] Finished Commit a transient machine-id on disk.
[ OK ] Finished Create Volatile Files and Directories.
         Starting Network Name Resolution...
         Starting Network Time Synchronization...
         Starting Update UTMP about System Boot/Shutdown...
[ OK ] Finished Update UTMP about System Boot/Shutdown.
         Starting Tell Plymouth To Write Out Runtime Data...
------------ Mon Aug 03 17:02:58 EDT 2020 ------------
[ OK ] Finished Tell Plymouth To Write Out Runtime Data.
[ OK ] Created slice system-systemd\x2dbacklight.slice.
         Starting Load/Save Screen Backlight Brightness of backlight:intel_backlight...
         Starting Load/Save RF Kill Switch Status...
[ OK ] Started Network Name Resolution.
[ OK ] Reached target Host and Network Name Lookups.
[ OK ] Started Network Time Synchronization.
[ OK ] Reached target System Time Set.
[ OK ] Reached target System Time Synchronized.
         Starting Tell Plymouth To Write Out Runtime Data...
[ OK ] Started Load/Save RF Kill Switch Status.
         Starting Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight...
[ OK ] Finished Load/Save Screen Backlight Brightness of leds:dell::kbd_backlight.
[ OK ] Finished Load/Save Screen Backlight Brightness of backlight:intel_backlight.
[ OK ] Finished Load AppArmor profiles.
         Starting Load AppArmor profiles managed internally by snapd...
[ OK ] Finished Load AppArmor profiles managed internally by snapd.
------------ Mon Aug 03 17:03:03 EDT 2020 ------------
[ OK ] Finished Tell Plymouth To Write Out Runtime Data.
[ OK ] Reached target System Initialization.
[ OK ] Started ACPI Events Check.
[ OK ] Started CUPS Scheduler.
[ OK ] Started Trigger anacron every hour.
[ OK ] Started Daily apt download activities.
[ OK ] Started Daily apt upgrade and clean activities.
[ OK ] Started Periodic ext4 Online Metadata Check for All Filesystems.
[ OK ] Started Disca...

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1872159, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.