NVIDIA Suspend fix

setup-nvdia-suspend.sh

# Use systemd for managing NVIDIA driver suspend in drivers ====>>> PRIOR to version 470 <<<=====
# https://download.nvidia.com/XFree86/Linux-x86_64/450.66/README/powermanagement.html
# https://forums.developer.nvidia.com/t/unable-to-set-nvidia-kernel-module-parameters/161306
# Please note: In Fedora Linux you may need to just install the xorg-x11-drv-nvidia-power pakage 
# as sugested by @goombah88 in the comments below. 

TMP_PATH=/var/tmp
TMPL_PATH=/usr/share/doc/nvidia-driver-460/

echo "options nvidia NVreg_PreserveVideoMemoryAllocations=1 NVreg_TemporaryFilePath=${TMP_PATH}" | sudo tee /etc/modprobe.d/nvidia-power-management.conf 

sudo install --mode 644 "${TMPL_PATH}/nvidia-suspend.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/nvidia-hibernate.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/nvidia-resume.service" /etc/systemd/system
sudo install "${TMPL_PATH}/nvidia" /lib/systemd/system-sleep
sudo install "${TMPL_PATH}/nvidia-sleep.sh" /usr/bin

sudo systemctl enable nvidia-suspend.service
sudo systemctl enable nvidia-hibernate.service
sudo systemctl enable nvidia-resume.service

@bmharper That works for alienware laptop with nvidia driver 515

It works. The power drain I see before is not related to nvidia graphic card.

I tried to put the alienware laptop to airplane mode and pull out usb dondle before put into suspend, and put in the backpack for the whole night. The battery level only down by 9% which is normal, and no extra heat in the backpack.

BTW: I also update the driver to version 520, and upgrade ubuntu to 22.04.1 LTS. Works fine.

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

worked for me. Thank you very much.

For me, with nvidia-driver-495, the simple solution was to remove the damaged symlinks from systemd. You most likely have them if you upgraded from nvidia-driver-470, because 470 still included the .service files in /lib/systemd/system/. The files are no longer included in 495 but the postinst script does not remove the symlinks. So, remove them with:

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

Works instantly, no need of rebooting or logging off.

This does the job. Thank you.

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

Thank you, This worked in my case.

The method works. In case you need fresh files install the services, you can get your driver version from NVIDIA. Use nvidia-smi to get the exact version and then run the .run file with --extract-only flag: sudo bash NVIDIA-Linux-x86_64-515.65.01.run --extract-only.

Then you run the given commands setting the TMPL_PATH to the path where you've extracted the files. Keep in mind that the files for this driver (515.65.01) have a slightly different locations as stated in the original post. So the updated commands should be like this:

TMPL_PATH=/home/user/Downloads/NVIDIA-Linux-x86_64-515.65.01/systemd

sudo install --mode 644 "${TMPL_PATH}/system/nvidia-suspend.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-hibernate.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-resume.service" /etc/systemd/system
sudo install "${TMPL_PATH}/system-sleep/nvidia" /lib/systemd/system-sleep
sudo install "${TMPL_PATH}/nvidia-sleep.sh" /usr/bin

sudo systemctl enable nvidia-suspend.service
sudo systemctl enable nvidia-hibernate.service
sudo systemctl enable nvidia-resume.service

Thanks! This worked for me for 530.30.02

Thanks! This worked for me for 530.30.02

Having troubles to understand what exactly worked for you - enabling or removing the service files? Comments here seem to suggest contradicting solutions.

Thanks! This worked for me for 530.30.02

Having troubles to understand what exactly worked for you - enabling or removing the service files? Comments here seem to suggest contradicting solutions.

Removing. If the symlinks are broken, best you can do is remove.

Thanks! This worked for me for 530.30.02

I have tried removing too. Driver: 530.41.03. I have been working on this for hours I have 0 clues on how to fix this issue. Just for clarity, When I do sudo systemctl suspend it kinda just logs out and does not enter suspend. Although Initially, I did have a problem where it would just hang when I wake from suspend.

This is what it throws out when I run journalctl -b | grep suspend. Somebody help 😭

May 03 17:57:26 Dennis-Ritchie kernel: nvme 0000:03:00.0: platform quirk: setting simple suspend
May 03 17:57:26 Dennis-Ritchie systemd-udevd[3535]: suspend: Process '/bin/chgrp video /sys/class/backlight/nvidia_0/brightness' failed with exit code 1.
May 03 17:57:26 Dennis-Ritchie systemd-udevd[3535]: suspend: Process '/bin/chmod g+w /sys/class/backlight/nvidia_0/brightness' failed with exit code 1.
May 03 18:21:05 Dennis-Ritchie ModemManager[8316]: <info>  [sleep-monitor] system is about to suspend
May 03 18:21:08 Dennis-Ritchie kernel: PM: suspend entry (deep)
May 03 18:21:12 Dennis-Ritchie kernel: printk: Suspending console(s) (use no_console_suspend to debug)
May 03 18:21:12 Dennis-Ritchie kernel: NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.
May 03 18:21:12 Dennis-Ritchie kernel: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x30 [nvidia] returns -5
May 03 18:21:12 Dennis-Ritchie kernel: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -5
May 03 18:21:12 Dennis-Ritchie kernel: nvidia 0000:01:00.0: PM: failed to suspend async: error -5
May 03 18:21:12 Dennis-Ritchie kernel: PM: Some devices failed to suspend, or early wake event detected
May 03 18:21:12 Dennis-Ritchie kernel: PM: suspend exit
May 03 18:21:12 Dennis-Ritchie kernel: PM: suspend entry (s2idle)
May 03 18:21:13 Dennis-Ritchie kernel: printk: Suspending console(s) (use no_console_suspend to debug)
May 03 18:21:13 Dennis-Ritchie kernel: NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.
May 03 18:21:13 Dennis-Ritchie kernel: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x30 [nvidia] returns -5
May 03 18:21:13 Dennis-Ritchie kernel: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -5
May 03 18:21:13 Dennis-Ritchie kernel: nvidia 0000:01:00.0: PM: failed to suspend async: error -5
May 03 18:21:13 Dennis-Ritchie kernel: PM: Some devices failed to suspend, or early wake event detected
May 03 18:21:13 Dennis-Ritchie systemd-sleep[29540]: Failed to suspend system. System resumed again: Input/output error
May 03 18:21:13 Dennis-Ritchie kernel: PM: suspend exit
May 03 18:21:13 Dennis-Ritchie systemd[1]: systemd-suspend.service: Main process exited, code=exited, status=1/FAILURE
May 03 18:21:13 Dennis-Ritchie systemd[1]: systemd-suspend.service: Failed with result 'exit-code'.
May 03 18:21:13 Dennis-Ritchie systemd[1]: suspend.target: Job suspend.target/start failed with result 'dependency'.
May 03 18:21:38 Dennis-Ritchie sudo[30366]:    sahas : TTY=pts/0 ; PWD=/home/sahas ; USER=root ; COMMAND=/usr/bin/systemctl suspend
May 03 18:21:38 Dennis-Ritchie ModemManager[8316]: <info>  [sleep-monitor] system is about to suspend
May 03 18:21:43 Dennis-Ritchie kernel: PM: suspend entry (deep)
May 03 18:21:48 Dennis-Ritchie kernel: printk: Suspending console(s) (use no_console_suspend to debug)
May 03 18:21:48 Dennis-Ritchie kernel: NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.
May 03 18:21:48 Dennis-Ritchie kernel: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x30 [nvidia] returns -5
May 03 18:21:48 Dennis-Ritchie kernel: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -5
May 03 18:21:48 Dennis-Ritchie kernel: nvidia 0000:01:00.0: PM: failed to suspend async: error -5
May 03 18:21:48 Dennis-Ritchie kernel: PM: Some devices failed to suspend, or early wake event detected
May 03 18:21:48 Dennis-Ritchie kernel: PM: suspend exit
May 03 18:21:48 Dennis-Ritchie kernel: PM: suspend entry (s2idle)
May 03 18:21:50 Dennis-Ritchie kernel: printk: Suspending console(s) (use no_console_suspend to debug)
May 03 18:21:50 Dennis-Ritchie kernel: NVRM: GPU 0000:01:00.0: PreserveVideoMemoryAllocations module parameter is set. System Power Management attempted without driver procfs suspend interface. Please refer to the 'Configuring Power Management Support' section in the driver README.
May 03 18:21:50 Dennis-Ritchie kernel: PM: pci_pm_suspend(): nv_pmops_suspend+0x0/0x30 [nvidia] returns -5
May 03 18:21:50 Dennis-Ritchie kernel: PM: dpm_run_callback(): pci_pm_suspend+0x0/0x1b0 returns -5
May 03 18:21:50 Dennis-Ritchie kernel: nvidia 0000:01:00.0: PM: failed to suspend async: error -5
May 03 18:21:50 Dennis-Ritchie kernel: PM: Some devices failed to suspend, or early wake event detected
May 03 18:21:50 Dennis-Ritchie kernel: PM: suspend exit
May 03 18:21:50 Dennis-Ritchie systemd-sleep[30440]: Failed to suspend system. System resumed again: Input/output error
May 03 18:21:50 Dennis-Ritchie systemd[1]: systemd-suspend.service: Main process exited, code=exited, status=1/FAILURE
May 03 18:21:50 Dennis-Ritchie systemd[1]: systemd-suspend.service: Failed with result 'exit-code'.
May 03 18:21:50 Dennis-Ritchie systemd[1]: suspend.target: Job suspend.target/start failed with result 'dependency'.

The method works. In case you need fresh files install the services, you can get your driver version from NVIDIA. Use nvidia-smi to get the exact version and then run the .run file with --extract-only flag: sudo bash NVIDIA-Linux-x86_64-515.65.01.run --extract-only.

Then you run the given commands setting the TMPL_PATH to the path where you've extracted the files. Keep in mind that the files for this driver (515.65.01) have a slightly different locations as stated in the original post. So the updated commands should be like this:

TMPL_PATH=/home/user/Downloads/NVIDIA-Linux-x86_64-515.65.01/systemd

sudo install --mode 644 "${TMPL_PATH}/system/nvidia-suspend.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-hibernate.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-resume.service" /etc/systemd/system
sudo install "${TMPL_PATH}/system-sleep/nvidia" /lib/systemd/system-sleep
sudo install "${TMPL_PATH}/nvidia-sleep.sh" /usr/bin

sudo systemctl enable nvidia-suspend.service
sudo systemctl enable nvidia-hibernate.service
sudo systemctl enable nvidia-resume.service

I have the 530.30.02 drivers and this worked for me thanks! I almost gave up on it.

The method works. In case you need fresh files install the services, you can get your driver version from NVIDIA. Use nvidia-smi to get the exact version and then run the .run file with --extract-only flag: sudo bash NVIDIA-Linux-x86_64-515.65.01.run --extract-only.
Then you run the given commands setting the TMPL_PATH to the path where you've extracted the files. Keep in mind that the files for this driver (515.65.01) have a slightly different locations as stated in the original post. So the updated commands should be like this:

TMPL_PATH=/home/user/Downloads/NVIDIA-Linux-x86_64-515.65.01/systemd

sudo install --mode 644 "${TMPL_PATH}/system/nvidia-suspend.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-hibernate.service" /etc/systemd/system
sudo install --mode 644 "${TMPL_PATH}/system/nvidia-resume.service" /etc/systemd/system
sudo install "${TMPL_PATH}/system-sleep/nvidia" /lib/systemd/system-sleep
sudo install "${TMPL_PATH}/nvidia-sleep.sh" /usr/bin

sudo systemctl enable nvidia-suspend.service
sudo systemctl enable nvidia-hibernate.service
sudo systemctl enable nvidia-resume.service

I have the 530.30.02 drivers and this worked for me thanks! I almost gave up on it.

Did you change the above command to 530.30.02 (your driver version) or 515.65.01 (The one given in the script)?

Sort of. I downloaded the closest driver, to mine, I could "easily" find from the nvidia driver website and used the name of that version in the script. Which means that I changed all instances of 515.65.01 in the above command to 530.41.03. I hope this helps.
(do note: It would probably be better to match the exact version)

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

This works perfectly

This fails at first for me. Suspend still freezes on my XPS 9560 with Ubuntu 22.04

Edit: But after I restored the link, it seemed to work for a while:

sudo ln -s  /lib/systemd/system/nvidia-hibernate.service /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service 
sudo ln -s /lib/systemd/system/nvidia-resume.service /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service  
sudo ln -s /lib/systemd/system/nvidia-resume.service /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service  
sudo ln -s  /lib/systemd/system/nvidia-suspend.service /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service 

... but next day same issue: resume after suspend will freeze system. I can login with ssh though...

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

This works perfectly

This fails at first for me. Suspend still freezes on my XPS 9560 with Ubuntu 22.04

Edit: But after I restored the link, it seemed to work for a while:

sudo ln -s  /lib/systemd/system/nvidia-hibernate.service /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service 
sudo ln -s /lib/systemd/system/nvidia-resume.service /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service  
sudo ln -s /lib/systemd/system/nvidia-resume.service /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service  
sudo ln -s  /lib/systemd/system/nvidia-suspend.service /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service 

... but next day same issue: resume after suspend will freeze system. I can login with ssh though...

Yea same, im running ver. 535.54.03 and it just freezes when I try to start the suspend command manually. When I try to enter from the desktop it just ends up logging out

Same 535.54.03 for me. As long as I have "Prime select" on "intel", suspend works flawless, by the way. Just Nvidia not.. )

is there any reason this is not set by default? i'm using kubuntu 23.04 with 535 driver and i had to follow this to get suspend working working, although i had to only enable the services.

is there any reason this is not set by default? i'm using kubuntu 23.04 with 535 driver and i had to follow this to get suspend working working, although i had to only enable the services.

What is "this"... you mean prime-select? ... if it is not on "Nvidia-on-demand" we can not use discrete graphics on the laptop..

I currently have prime and Optimus manager installed. Driver version is 535.54.03 . I am facing the suspend issue when laptop is in hybrid or discrete graphics mode but no issue on integrated mode. What steps should I follow to solve this issue?

Hi I'm also facing the same issue on ubuntu 22.10 / Nvidia-driver-535. I'm not sure what exact steps to be taken to resolve the suspend issue. The device wakes up immediately after suspend. If manually suspended, the graphics has issues after wakeup and external monitor does not work post suspend.

Yeah . I didn't face that issue earlier . It's fairly recent for me. I was on Fedora 37 when I started facing the issue.. I tried everything then but it didn't work . Then I switched to EndeavourOS and followed the steps mentioned in post but the issue didn't resolve. I came across post where they mentioned sometimes having less SWAP partition can cause that issue so I created new SWAP partition and again the issue didn't resolve.

I was earlier dual booting with windows 10, since this issue was not resolved I reverted back to Windows removing the Linux partition. Main issue is without suspend there is constant use of device and there is high power consumption, suspending will reboot system causing loss of work. Suspend works fine on integrated graphics but that's not viable since I can't use my external display . So I switched. Hopefully someone will figure out what exactly is the issue!

The solution by @ermenkov is the only thing that worked. Ubuntu 22.02 / driver version 535.104.05

The other issue was bluetooth waking up the system immediately after suspend. That was fixed with this script in /lib/systemd/system-sleep/bluetooth-suspend (From stack overflow or a forum, I forget where)

#!/bin/bash
# Makes sure bluetooth service is not running while suspended.

if [ "${1}" == "pre" ]; then
    service bluetooth stop
elif [ "${1}" == "post" ]; then
    service bluetooth start
fi

Whoever gave this idea worked for me:

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

My nvidia info using nvidia-smi command:

Wed Sep  6 19:56:52 2023       
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.104.05             Driver Version: 535.104.05   CUDA Version: 12.2     |
|-----------------------------------------+----------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. |
|                                         |                      |               MIG M. |
|=========================================+======================+======================|
|   0  NVIDIA GeForce RTX 3060 Ti     Off | 00000000:B3:00.0  On |                  N/A |
|  0%   48C    P8              21W / 240W |    345MiB /  8192MiB |     36%      Default |
|                                         |                      |                  N/A |
+-----------------------------------------+----------------------+----------------------+
                                                                                         
+---------------------------------------------------------------------------------------+
| Processes:                                                                            |
|  GPU   GI   CI        PID   Type   Process name                            GPU Memory |
|        ID   ID                                                             Usage      |
|=======================================================================================|
|    0   N/A  N/A      2404      G   /usr/lib/xorg/Xorg                          179MiB |
|    0   N/A  N/A      2575      G   /usr/bin/gnome-shell                         98MiB |
|    0   N/A  N/A     50045      G   ...2403833,13679958894095400614,262144       58MiB |
+---------------------------------------------------------------------------------------+

System Name:
Dell Inc. Precision 5820 Tower
Ubuntu 22.04.3 LTS

I'm on Ubuntu 22.04, and after installing CUDA I was unable to suspend. The following steps worked for me:

• Inside /etc/systemd, delete all of the files that include nvidia and suspend or hibernate. There are three services inside /etc/systemd/system, which I deleted. There are also some other dead nvidia links inside systemd-hibernate.service.requires, systemd-suspend.service.requires, which I deleted.

I wish I knew the exact names of the files that I deleted, but since they're now gone, I can't remember their exact paths. But in a nutshell, go into /etc/systemd, and do find . -iname nv*, and then delete all the of the suspend, resume, and hibernate scripts.

DO NOT DELETE nvidia-powerd.service and nvidia-persistenced.service.

Once you're done with that, do systemctl daemon-reload.

Worked for me as well!

I have a Dell Inspiron 15 5000 with Nvidia driver 470.199.02 on Ubuntu 20.04 LTS.

sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-hibernate.service.requires/nvidia-hibernate.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-resume.service
sudo rm /etc/systemd/system/systemd-suspend.service.requires/nvidia-suspend.service

This works perfectly

Also worked for me after installing CUDA libraries on Ubuntu 22.04. Prior to this I had Nvidia drivers working with suspend without issue.

I know this gist is for NVIDIA drivers with versions <470, but I wanted to if anyone has had any luck getting drivers 525, or 535 to work.

GPU: Nvidia 4060 TI
Driver: 535.129.03
CUDA Version: 12.2
CPU: AMD 5700X
Board: Gigabyte 550 Gaming V2
OS: Ubuntu 22.04.3 LTS

Basically, when I select suspend on Ubuntu, my screens turn off, and my fans spin up to a very high RPM. Then I am unable to wake it up from this state, and must toggle the PSU switch off and on again. After that, the login screen is displayed.

I know this is an Ubuntu related issue because I can put my computer to sleep on Windows 10, and wake it back up again.

What I've tried:

• Editing /etc/defaults/grub (GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" GRUB_CMDLINE_LINUX="nouveau.blacklist=1")
• Removing all NVIDIA services in /etc/systemd (https://askubuntu.com/a/1409631/1554429)
• Installing different Nvidia drivers, both open source and proprietary options
• Setting the Nvidia sleep shell script to only execute exit 0
• Disabled secure boot in BIOS
• Disabled CSM in BIOS
• Enabled mouse and key presses to wake in BIOS
• Disabling Nvidia systemd state management, https://askubuntu.com/a/1436923/1554429
• Other stuff...

Yes, I got it to run on an IBM Thinkpad P52 with:

GPU: NVIDIA GP107GLM [Quadro P2000 Mobile]
Driver: 535.129.03
CPU: Intel Xeon E-2176M
Distro: Linux Mint 21.2 Victoria
base: Ubuntu 22.04 jammy
Kernel: 5.15.0-89-generic x86_64
Desktop: Xfce 4.18.1

My 'trick' ist to only use:

sudo pm-suspend

Anything related to systemd suspend, closing lid etc. else will fail miserably, end with a hanging OS and a hard reboot. Very disappointing, for quite a long time already.

I'm on Ubuntu 22.04, and after installing CUDA I was unable to suspend. The following steps worked for me:

• Inside /etc/systemd, delete all of the files that include nvidia and suspend or hibernate. There are three services inside /etc/systemd/system, which I deleted. There are also some other dead nvidia links inside systemd-hibernate.service.requires, systemd-suspend.service.requires, which I deleted.

I wish I knew the exact names of the files that I deleted, but since they're now gone, I can't remember their exact paths. But in a nutshell, go into /etc/systemd, and do find . -iname nv*, and then delete all the of the suspend, resume, and hibernate scripts.
DO NOT DELETE nvidia-powerd.service and nvidia-persistenced.service.
Once you're done with that, do systemctl daemon-reload.

Worked for me as well!

I have a Dell Inspiron 15 5000 with Nvidia driver 470.199.02 on Ubuntu 20.04 LTS.

This worked for me too! I have a Razer Blade 14 2022 with Nvidia driver 535.129.03 on Ubuntu 23.10

This also worked for me on an XPS 15 with a 3050 Ti (Ampere), Ubuntu 22.04, driver 550.

This fixed my pci_pm_suspend() and the PreserveVideoMemory stuff that would pop up and prevent laptop sleep.

If you deleted the service files, like nvidia-powerd.service or nvidia-persistenced.service, you either find them here or you can reinstall the drivers like this.

After reinstalling, I was able to see the service files, and then doing what the OP said worked.

Doing systemctl list-unit-files | grep nvidia now gets me:

joao@joao-XPS-15-9520:~$ systemctl list-unit-files | grep nvidia
nvidia-hibernate.service                                                  enabled         enabled
nvidia-persistenced.service                                               static          -
nvidia-resume.service                                                     enabled         enabled
nvidia-suspend.service                                                    enabled         enabled

Good luck!