You have been subscribed to a public bug:
One the screen is locked the user is unable to get the login screen.
Though the user can see the windows of applications opened in the
background but can not activaely interact with them. However the random
keys pressed during this issue can be seen once user logs in by
following the below steps:
1. Let the lockscrren tp display.
2. Click on the icon on the bottom-right corner of the lockscreen.
3. Get the log in window and enter password to log in.
4. User is now logged in and is out of the issue.
* lsb_release -rd:
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04
* Software Center version: 3.35.91
* What you expected to happen: User when locks the system and tries to
log in back then the user should get a log in window and untill user
logs in the background application windows should not be visible and
user cannot interact with them without logging in successfully.
* What happened instead: User when logs out and tries to log in again, the
application windows are visible opened in the background instead getting a
login screen. If user press random keys on the visible application windows
during system lock it seems that nothing happens but once user successfully
logs in, the random keystrokes can be seen on the application window in
background. The issue goes after following the below steps:
1. Let the lockscrren tp display.
2. Click on the icon on the bottom-right corner of the lockscreen.
3. Get the log in window and enter password to log in.
4. User is now logged in and is out of the issue.
Attachment of issue is attached, the black screen in video end is of
screen where user gets login prompt after clicking on the icon on the
bottom-right corner of the lockscreen.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18
Uname: Linux 5.4.0-14-generic x86_64
.tmp.unity_support_test.0:
ApportVersion: 2.20.11-0ubuntu18
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Mar 5 23:02:36 2020
DistUpgraded: 2020-02-04 22:40:17,211 DEBUG inhibit gnome-session idle
DistroCodename: focal
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation HD Graphics 520 [8086:1921] (rev 0a) (prog-if 00 [VGA
controller])
Subsystem: Lenovo HD Graphics 520 [17aa:39f2]
InstallationDate: Installed on 2019-12-14 (82 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 8087:0a2a Intel Corp.
Bus 001 Device 003: ID 5986:0711 Acer, Inc EasyCamera
Bus 001 Device 002: ID 046d:c534 Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 80S7
ProcEnviron:
LANGUAGE=en_IN:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_IN
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-14-generic
root=UUID=9e20a847-bcac-4f7f-ae59-60a69ec18299 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
Title: Xorg crash
UpgradeStatus: Upgraded to focal on 2020-02-04 (30 days ago)
dmi.bios.date: 06/19/2018
dmi.bios.vendor: LENOVO
dmi.bios.version: 0VCN31WW(V1.15)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40679 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 31
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo YOGA 510-14ISK
dmi.modalias:
dmi:bvnLENOVO:bvr0VCN31WW(V1.15):bd06/19/2018:svnLENOVO:pn80S7:pvrLenovoYOGA510-14ISK:rvnLENOVO:rnLNVNB161216:rvrSDK0J40679WIN:cvnLENOVO:ct31:cvrLenovoYOGA510-14ISK:
dmi.product.family: YOGA 510-14ISK
dmi.product.name: 80S7
dmi.product.sku: LENOVO_MT_80S7_BU_idea_FM_YOGA 510-14ISK
dmi.product.version: Lenovo YOGA 510-14ISK
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.14.1+20.04.20200211-0ubuntu1
version.libdrm2: libdrm2 2.4.100-4
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.0-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 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: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug crash focal has-workaround reproducible ubuntu
--
Login screen hangs
https://bugs.launchpad.net/bugs/1866219
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