After locking screen, the keyboard is not able to "wake up" the display even after entering password and logging in (Able to log in successfully, but display is still in standby mode). A mouse click has to be performed to get the display to turn on.
Both keyboard and mouse are connected to the built-in USB hub on the display.
When keyboard is connected directly to tower, this issue also occurs.
Using Ubuntu 24.04 LTS with Nvidia graphics (nvidia-driver-550)
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
Uname: Linux 6.8.0-31-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.fabric-imex-mgmt:
DeviceFileMinor: 4323
DeviceFileMode: 256
DeviceFileModify: 1
.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.0000.02.00.0: 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 550.67 Tue Mar 12 23:54:15 UTC 2024
GCC version: gcc version 13.2.0 (Ubuntu 13.2.0-23ubuntu4)
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 May 10 13:16:53 2024
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus: nvidia/550.67, 6.8.0-31-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation RocketLake-S GT1 [UHD Graphics 750] [8086:4c8a] (rev 04) (prog-if 00 [VGA controller])
Subsystem: Dell RocketLake-S GT1 [UHD Graphics 750] [1028:09c5]
NVIDIA Corporation GA104 [GeForce RTX 3060 Ti Lite Hash Rate] [10de:2489] (rev a1) (prog-if 00 [VGA controller])
Subsystem: Dell GA104 [GeForce RTX 3060 Ti Lite Hash Rate] [1028:c976]
InstallationDate: Installed on 2024-05-08 (2 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: Dell Inc. XPS 8940
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-31-generic root=UUID=371a1462-1a28-4016-a538-438b39d00567 ro quiet splash vt.handoff=7
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/14/2022
dmi.bios.release: 2.10
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.10.0
dmi.board.name: 0K3CM7
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.10.0:bd09/14/2022:br2.10:svnDellInc.:pnXPS8940:pvr:rvnDellInc.:rn0K3CM7:rvrA00:cvnDellInc.:ct3:cvr:sku09C5:
dmi.product.family: XPS
dmi.product.name: XPS 8940
dmi.product.sku: 09C5
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
It looks like there are a lot of Nvidia-related PCI bus errors. So I would go as far as testing a different graphics card in the same machine. Although the problem could equally be the motherboard.