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[Bug 2128888] [NEW] Wallpaper is not shown correctly on lock screen with multiple monitors

 

Public bug reported:

I have two monitors, the left is set as primary monitor, the right is
set as secondary monitor. Dash is on the left only. I have one of
standard Ubuntu wallpapers set. When logged in, wallpaper is visible
both on the left and the right monitor (each time zoomed over the whole
screen, not stretched across both screens but each has its own copy).

If I do not have secondary monitor connected, then when I go to lock
screen screen the background is a blurred version of my wallpaper (which
I like). But if I do have secondary monitor connected, then the right
monitor (non-primary, where is nothing is shown otherwise - on the
primary I have input password shown - as expected) has the blurred
background but the left (where input password is) is simply dark, almost
black, without any background.

I would like that both monitors have blurred background image.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-85.85-generic 6.8.12
Uname: Linux 6.8.0-85-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 18 13:14:59 2025
DistUpgraded: 2025-10-16 08:57:10,835 DEBUG migrateToDeb822Sources()
DistroCodename: noble
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Iris Plus Graphics G7 [8086:8a52] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Iris Plus Graphics G7 [1028:096d]
InstallationDate: Installed on 2020-08-01 (1904 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
MachineType: Dell Inc. XPS 13 9300
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-85-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to noble on 2025-10-16 (2 days ago)
dmi.bios.date: 02/05/2024
dmi.bios.release: 1.23
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.23.0
dmi.board.name: 0WX9VX
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.23.0:bd02/05/2024:br1.23:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0WX9VX:rvrA00:cvnDellInc.:ct10:cvr:sku096D:
dmi.product.family: XPS
dmi.product.name: XPS 13 9300
dmi.product.sku: 096D
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 25.0.7-0ubuntu0.24.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2ubuntu0.1

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


** Tags: amd64 apport-bug noble ubuntu wayland-session

** Summary changed:

- Wallpaper is not shown correctly on lock screen with multiple 
+ Wallpaper is not shown correctly on lock screen with multiple monitors

-- 
You received this bug notification because you are a member of
Debcrafters packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/2128888

Title:
  Wallpaper is not shown correctly on lock screen with multiple monitors

Status in xorg package in Ubuntu:
  New

Bug description:
  I have two monitors, the left is set as primary monitor, the right is
  set as secondary monitor. Dash is on the left only. I have one of
  standard Ubuntu wallpapers set. When logged in, wallpaper is visible
  both on the left and the right monitor (each time zoomed over the
  whole screen, not stretched across both screens but each has its own
  copy).

  If I do not have secondary monitor connected, then when I go to lock
  screen screen the background is a blurred version of my wallpaper
  (which I like). But if I do have secondary monitor connected, then the
  right monitor (non-primary, where is nothing is shown otherwise - on
  the primary I have input password shown - as expected) has the blurred
  background but the left (where input password is) is simply dark,
  almost black, without any background.

  I would like that both monitors have blurred background image.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: xorg 1:7.7+23ubuntu3
  ProcVersionSignature: Ubuntu 6.8.0-85.85-generic 6.8.12
  Uname: Linux 6.8.0-85-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: unknown
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Oct 18 13:14:59 2025
  DistUpgraded: 2025-10-16 08:57:10,835 DEBUG migrateToDeb822Sources()
  DistroCodename: noble
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, including running git bisection searches
  GraphicsCard:
   Intel Corporation Iris Plus Graphics G7 [8086:8a52] (rev 07) (prog-if 00 [VGA controller])
     Subsystem: Dell Iris Plus Graphics G7 [1028:096d]
  InstallationDate: Installed on 2020-08-01 (1904 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  MachineType: Dell Inc. XPS 13 9300
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.8.0-85-generic root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to noble on 2025-10-16 (2 days ago)
  dmi.bios.date: 02/05/2024
  dmi.bios.release: 1.23
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.23.0
  dmi.board.name: 0WX9VX
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.23.0:bd02/05/2024:br1.23:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0WX9VX:rvrA00:cvnDellInc.:ct10:cvr:sku096D:
  dmi.product.family: XPS
  dmi.product.name: XPS 13 9300
  dmi.product.sku: 096D
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 25.0.7-0ubuntu0.24.04.2
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1build1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2ubuntu0.1

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