Public bug reported:
This is basically the same symptom, but from many years ago:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431128
To reproduce:
1) Suspend (I do so via the dropdown menu)
2) Turn off display. (Not sure if relevant)
3) Turn on display. (Not sure if relevant, problem occurs even if this step is
after #4)
4) Wake from suspend (I do so by pressing a key on the keyboard OR the power
button)
5) Screen either stays black or flickers for a second and then goes black
6) Press any key on the keyboard
7) Login screen appears (as if it was in screen-saver/lock mode before)
I'm guessing the bug is not very reproducible because you would have
noticed it already. However, I should note that (aside from a few days
after I installed the OS) the problem happens 100% of the times I wake
from sleep
Some unique details about my setup:
1) The default 20.04 installation failed to a bug installing the packaged
Nvidia drivers, but skipping that and doing it after installation worked in all
respects that I can see
2) My computer is custom, not OEM.
3) I do have VMWare Workstation installed
4) I used to use 18.04 and 19.10, neither had the issue
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-51.56-generic 5.4.65
Uname: Linux 5.4.0-51-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus..01.00.0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/gpus/: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 450.80.02 Wed Sep 23 01:13:39
UTC 2020
GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
ApportVersion: 2.20.11-0ubuntu27.9
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Nov 29 10:05:23 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
nvidia, 450.80.02, 5.4.0-48-generic, x86_64: installed
nvidia, 450.80.02, 5.4.0-51-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
NVIDIA Corporation GP102 [GeForce GTX 1080 Ti] [10de:1b06] (rev a1) (prog-if
00 [VGA controller])
Subsystem: ASUSTeK Computer Inc. GP102 [GeForce GTX 1080 Ti] [1043:85e5]
InstallationDate: Installed on 2020-09-30 (60 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: System manufacturer System Product Name
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-51-generic
root=UUID=523d2f8a-7d34-4bc0-9f78-2c71296de605 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/11/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1205
dmi.board.asset.tag: Default string
dmi.board.name: STRIX Z270I GAMING
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr1205:bd05/11/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnSTRIXZ270IGAMING:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
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.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.4
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
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal freeze ubuntu
** Description changed:
This is basically the same symptom, but from many years ago:
https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1431128
To
