suspend-target and systemd-suspend.service hang on resume and blocks shutdown/reboot

[M. Kurt]

This happens only after I connect my Toshiba FireTV via HDMI. I don't need to be using the TV. If I have connected TV just once it is enough to trigger this bug. Laptop goes to sleep just fine but when it wakes up from sleep I see 5 services when I execute
$ systemctl list-jobs

JOB UNIT TYPE STATE
7348 nvidia-resume.service start waiting
7236 suspend.target start waiting
7346 grub-common.service start waiting
7237 systemd-suspend.service start running
7241 grub-initrd-fallback.service start waiting

In this state, I have to cancel suspend-target which in turn cancels
 7346 grub-common.service start waiting
 7237 systemd-suspend.service start running
 7241 grub-initrd-fallback.service start waiting

Then, I have to cancel cancelling systemd-suspend.service which cancels
 7348 nvidia-resume.service start waiting

I use the laptop without issues but then if I need to shut it down or reboot, system gets stuck after logging out of X. I end up doing a REISUB.

This only happens if I connect to TV via HDMI.

ProblemType: Bug
DistroRelease: Ubuntu 23.10
Package: systemd 253.5-1ubuntu6.1
ProcVersionSignature: Ubuntu 6.5.0-21.21-generic 6.5.8
Uname: Linux 6.5.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.27.0-0ubuntu5
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Fri Feb 23 19:32:08 2024
InstallationDate: Installed on 2023-11-04 (112 days ago)
InstallationMedia: Ubuntu 22.04.3 LTS "Jammy Jellyfish" - Release amd64 (20230807.2)
MachineType: {report['dmi.sys.vendor']} {report['dmi.product.name']}
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.5.0-21-generic root=UUID=2a5d61f3-134e-404f-bc44-06c827cf55f6 ro quiet splash amd_pstate=passive vt.handoff=7
SourcePackage: systemd
SystemdFailedUnits:
 Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
 Unit \xe2\x97\x8f.service could not be found.
UpgradeStatus: Upgraded to mantic on 2023-12-10 (75 days ago)
dmi.bios.date: 12/28/2023
dmi.bios.release: 1.41
dmi.bios.vendor: LENOVO
dmi.bios.version: M3CN41WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76463 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion Slim 5 16APH8
dmi.ec.firmware.release: 1.41
dmi.modalias: dmi:bvnLENOVO:bvrM3CN41WW:bd12/28/2023:br1.41:efr1.41:svnLENOVO:pn82Y9:pvrLegionSlim516APH8:rvnLENOVO:rnLNVNB161216:rvrSDK0T76463WIN:cvnLENOVO:ct10:cvrLegionSlim516APH8:skuLENOVO_MT_82Y9_BU_idea_FM_LegionSlim516APH8:
dmi.product.family: Legion Slim 5 16APH8
dmi.product.name: 82Y9
dmi.product.sku: LENOVO_MT_82Y9_BU_idea_FM_Legion Slim 5 16APH8
dmi.product.version: Legion Slim 5 16APH8
dmi.sys.vendor: LENOVO