2nd Monitor is Visible On Lock screen.

[Erick Castillo]

I'm currenlty using a Laptop Dell XPS 15 9520 with an Nvidia GPU.
Using a USB Type-C Hub - Model: HD292-Gray. It requires 2 USB-C ports to be use at the same time to be able to use 2 external monitors.

The Issue Only Happens at Work when I'm using this HUB.
At Home I have no issues using dual monitors with a Single USB C hub that's capable of outputing two monitors via 1 usb port.

ISSUE:

If PC is lock, and remains lock for a few minutes, then when moving mouse or pressing keys to wakeup the 2nd monitor is visible.
1 Monitor has the lockscreen waiting for password for the machine to be unlock.
But 2nd Monitor is completly visible.

This issue only happens when using this hub with 2 usb c ports.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-35.35-generic 6.8.4
Uname: Linux 6.8.0-35-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
.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 535.171.04 Tue Mar 19 20:30:00 UTC 2024
 GCC version:
ApportVersion: 2.28.1-0ubuntu3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Jun 14 13:38:03 2024
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation Alder Lake-P GT2 [Iris Xe Graphics] [8086:46a6] (rev 0c) (prog-if 00 [VGA controller])
   Subsystem: Dell Alder Lake-P GT2 [Iris Xe Graphics] [1028:0b19]
   Subsystem: Dell GA107M [GeForce RTX 3050 Ti Mobile] [1028:0b19]
InstallationDate: Installed on 2024-04-30 (46 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: Dell Inc. XPS 15 9520
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-35-generic root=UUID=f8733ffc-b8aa-4a7b-8a06-1fd3c35c3bdb ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/10/2024
dmi.bios.release: 1.23
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.23.0
dmi.board.name: 0F6K9V
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:bd04/10/2024:br1.23:svnDellInc.:pnXPS159520:pvr:rvnDellInc.:rn0F6K9V:rvrA00:cvnDellInc.:ct10:cvr:sku0B19:
dmi.product.family: XPS
dmi.product.name: XPS 15 9520
dmi.product.sku: 0B19
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.120-2build1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.0.5-1ubuntu1
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 2:21.1.12-1ubuntu1
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 1:1.0.17-2build1

[Daniel van Vugt (vanvugt)]

The lock/unlock sequence can be broken by buggy gnome-shell extensions crashing when they get told to deactivate/reactivate, so please start by removing any local extensions:

  cd ~/.local/share/gnome-shell/
  rm -rf extensions

and then log in again.