System hangs on attempt to sleep

[Michał Fita]

I suppose this is kernel bug after some recent updates as previously that worked fine.

At the moment selecting "Sleep" from the right upper corner menu leaves the system hanged. The secondary screen turns off, but the power LED remains lit (on sleep it slowly flashes) and I can't do anything else that force it to shutdown (or leave until battery dries).

This affects my work and I can't leave computer over night going to sleep and I don't want waste expensive energy to leave it on.

I don't even have idea how to diagnose what may be going wrong. I've attempted to add "pcie_aspm=off amd_iommu=off" into kernel flags searching for improvements, but while they improved first attempt to go to sleep, after some time of the machine being busy another attempt miserably fails again.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: linux-image-5.19.0-38-generic 5.19.0-38.39~22.04.1
ProcVersionSignature: Ubuntu 5.19.0-38.39~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-38-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri Mar 31 10:06:20 2023
InstallationDate: Installed on 2023-03-07 (23 days ago)
InstallationMedia: Kubuntu 22.04.2 LTS "Jammy Jellyfish" - Release amd64 (20230223)
SourcePackage: linux-signed-hwe-5.19
UpgradeStatus: No upgrade log present (probably fresh install)