Public bug reported:

I am unsure where the problem stems, but changes since the 25th have
caused my system to fail to initialise the Xorg display. The console
remains operational for debugging. I am currently using ZFS snapshots to
use the system as it was on the 25th of March 2020 because that is the
last snapshot before this issue.

This bug was captured using ubuntu-bug when booted into the broken (i.e.
not working) latest snapshot of my filesystem.

The versions of packages from the not broken (i.e. correctly working)
earlier snapshot of my filesystem are:

libnvidia-cfg1-440:amd64         440.64-0ubuntu2
libnvidia-common-440             440.64-0ubuntu2
libnvidia-compute-440:amd64      440.64-0ubuntu2
libnvidia-compute-440:i386       440.64-0ubuntu2
libnvidia-decode-440:amd64       440.64-0ubuntu2
libnvidia-decode-440:i386        440.64-0ubuntu2
libnvidia-encode-440:amd64       440.64-0ubuntu2
libnvidia-encode-440:i386        440.64-0ubuntu2
libnvidia-fbc1-440:amd64         440.64-0ubuntu2
libnvidia-fbc1-440:i386          440.64-0ubuntu2
libnvidia-gl-440:amd64           440.64-0ubuntu2
libnvidia-gl-440:i386            440.64-0ubuntu2
libnvidia-ifr1-440:amd64         440.64-0ubuntu2
libnvidia-ifr1-440:i386          440.64-0ubuntu2
nvidia-compute-utils-440         440.64-0ubuntu2
nvidia-dkms-440                  440.64-0ubuntu2
nvidia-driver-440                440.64-0ubuntu2
nvidia-kernel-common-440         440.64-0ubuntu2
nvidia-kernel-source-440         440.64-0ubuntu2
nvidia-prime                     0.8.14
nvidia-settings                  440.64-0ubuntu1
nvidia-utils-440                 440.64-0ubuntu2
xserver-xorg-video-nvidia-440    440.64-0ubuntu2

$ lsb_release -rd
Description:    Ubuntu Focal Fossa (development branch)
Release:        20.04

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset 
nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  440.64  Fri Feb 21 01:17:26 
UTC 2020
 GCC version:  gcc version 9.3.0 (Ubuntu 9.3.0-3ubuntu1)
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
Date: Mon Mar 30 15:49:12 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus: nvidia, 440.64, 5.4.0-18-generic, x86_64: installed
ExtraDebuggingInterest: Yes
InstallationDate: Installed on 2020-03-03 (26 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303)
MachineType: Gigabyte Technology Co., Ltd. Z170X-UD5 TH
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=linux
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_7176ku@/vmlinuz-5.4.0-18-generic 
root=ZFS=rpool/ROOT/ubuntu_7176ku ro quiet splash intel_iommu=on vt.handoff=1
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/09/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F22g
dmi.board.asset.tag: Default string
dmi.board.name: Z170X-UD5 TH-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrF22g:bd03/09/2018:svnGigabyteTechnologyCo.,Ltd.:pnZ170X-UD5TH:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ170X-UD5TH-CF:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: Z170X-UD5 TH
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.100-4
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.2-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
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

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug champagne focal nvidia regression reproducible ubuntu

** Tags added: champagne

** Tags added: nvidia

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1869747

Title:
  Recent changes have caused Xorg to fail to start. Possibly nvidia
  driver related.

Status in xorg package in Ubuntu:
  New

Bug description:
  I am unsure where the problem stems, but changes since the 25th have
  caused my system to fail to initialise the Xorg display. The console
  remains operational for debugging. I am currently using ZFS snapshots
  to use the system as it was on the 25th of March 2020 because that is
  the last snapshot before this issue.

  This bug was captured using ubuntu-bug when booted into the broken
  (i.e. not working) latest snapshot of my filesystem.

  The versions of packages from the not broken (i.e. correctly working)
  earlier snapshot of my filesystem are:

  libnvidia-cfg1-440:amd64         440.64-0ubuntu2
  libnvidia-common-440             440.64-0ubuntu2
  libnvidia-compute-440:amd64      440.64-0ubuntu2
  libnvidia-compute-440:i386       440.64-0ubuntu2
  libnvidia-decode-440:amd64       440.64-0ubuntu2
  libnvidia-decode-440:i386        440.64-0ubuntu2
  libnvidia-encode-440:amd64       440.64-0ubuntu2
  libnvidia-encode-440:i386        440.64-0ubuntu2
  libnvidia-fbc1-440:amd64         440.64-0ubuntu2
  libnvidia-fbc1-440:i386          440.64-0ubuntu2
  libnvidia-gl-440:amd64           440.64-0ubuntu2
  libnvidia-gl-440:i386            440.64-0ubuntu2
  libnvidia-ifr1-440:amd64         440.64-0ubuntu2
  libnvidia-ifr1-440:i386          440.64-0ubuntu2
  nvidia-compute-utils-440         440.64-0ubuntu2
  nvidia-dkms-440                  440.64-0ubuntu2
  nvidia-driver-440                440.64-0ubuntu2
  nvidia-kernel-common-440         440.64-0ubuntu2
  nvidia-kernel-source-440         440.64-0ubuntu2
  nvidia-prime                     0.8.14
  nvidia-settings                  440.64-0ubuntu1
  nvidia-utils-440                 440.64-0ubuntu2
  xserver-xorg-video-nvidia-440    440.64-0ubuntu2

  $ lsb_release -rd
  Description:  Ubuntu Focal Fossa (development branch)
  Release:      20.04

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: xorg 1:7.7+19ubuntu14
  ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
  Uname: Linux 5.4.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset 
nvidia
  .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.suspend: suspend hibernate resume
  .proc.driver.nvidia.suspend_depth: default modeset uvm
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  440.64  Fri Feb 21 01:17:26 
UTC 2020
   GCC version:  gcc version 9.3.0 (Ubuntu 9.3.0-3ubuntu1)
  ApportVersion: 2.20.11-0ubuntu21
  Architecture: amd64
  Date: Mon Mar 30 15:49:12 2020
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroVariant: ubuntu
  DkmsStatus: nvidia, 440.64, 5.4.0-18-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  InstallationDate: Installed on 2020-03-03 (26 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303)
  MachineType: Gigabyte Technology Co., Ltd. Z170X-UD5 TH
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=linux
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_7176ku@/vmlinuz-5.4.0-18-generic 
root=ZFS=rpool/ROOT/ubuntu_7176ku ro quiet splash intel_iommu=on vt.handoff=1
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/09/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F22g
  dmi.board.asset.tag: Default string
  dmi.board.name: Z170X-UD5 TH-CF
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: Default string
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrF22g:bd03/09/2018:svnGigabyteTechnologyCo.,Ltd.:pnZ170X-UD5TH:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ170X-UD5TH-CF:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: Default string
  dmi.product.name: Z170X-UD5 TH
  dmi.product.sku: Default string
  dmi.product.version: Default string
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.100-4
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.2-1ubuntu1
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  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

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