Linux waking up after suspend immediately

in flag

After none of the solutions on the internet worked, I'm now asking here for help;

My system will not suspend or hibernate - it wakes up immediately.

I've disabled everything in /proc/acpi/wakeup using the command

for i in $(cat /proc/acpi/wakeup | grep enabled | awk '{print $1}'); 
    echo $i > /proc/acpi/wakeup; 

which, predictably did nothing.

I'm not sure exactly how I found this out, but I saw something to do with network-manager preventing sleep, however I have no idea what to do with this information. Hence I hope to receive help here.

What is preventing my system from suspending?


To answer two important questions:

  1. No, Wake on *, including Wake on LAN etc are not enabled. I've confirmed this by checking in the BIOS. The option exists and is unchecked.

  2. My system is a Dell Inspiron 15 7570 running KUbuntu 22.04 system, running Kernel v 5.15.0-60-generic.

  3. The output of inxi -G is:

Device-1: Intel UHD Graphics 620 driver: i915 v: kernel
Device-2: NVIDIA GM108M [GeForce MX130] driver: nvidia v: 525.60.13
Device-3: Sunplus Innovation Integrated_Webcam_HD type: USB
driver: uvcvideo
Display: x11 server: X.Org v: driver: X:
loaded: modesetting,nvidia unloaded: fbdev,nouveau,vesa gpu: i915
resolution: 1: 2560x1440~60Hz 2: 1920x1080~60Hz
OpenGL: renderer: NVIDIA GeForce MX130/PCIe/SSE2
v: 4.6.0 NVIDIA 525.60.13
Pilot6 avatar
cn flag
Maybe WoL is enabled in BIOS.
Pilot6 avatar
cn flag
Is it 21.04, or 22.04?
J-Cake avatar
in flag
Thanks for pointing it out. It's actually 22.04.
kanehekili avatar
zw flag
What does `inxi -G` say? Might be a GPU driver problem. Add the output to your question, not in the comments
J-Cake avatar
in flag
Thanks, I've updated to provide the information
ec flag
Have you explored errors in various system/kernel logs? Reviewing `dmesg`/`journalctl` output may be useful here.
J-Cake avatar
in flag
I have. I've opened my system journal and found a wake request from `Network-Manager`, which unfortunately lead to a dead-end. I've looked for similar issues, but the programs which seem to be causing the issue, also don't seem to be installed. Frankly, this issue is so unlike anything I've come across, I'm asking here to help track it down.
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