Trouble suspending with 510.39.01, Linux 5.16.0: Freezing of tasks failed after 20.009 seconds

Graphics / Linux Linux
12

I found a solution.

gnome-shell is trying to talk to the NVIDIA driver after it has already gone into suspend, so it can’t respond. Linux tries to freeze the task, but fails because gnome-shell is waiting for a response from the driver and can’t be frozen.

The solution is to manually suspend gnome-shell using the STOP signal before the NVIDIA driver goes to suspend. Then use the CONT signal on resume.

/usr/local/bin/suspend-gnome-shell.sh:

#!/bin/bash

case "$1" in
    suspend)
        killall -STOP gnome-shell
        ;;
    resume)
        killall -CONT gnome-shell
        ;;
esac

/etc/systemd/system/gnome-shell-suspend.service:

[Unit]
Description=Suspend gnome-shell
Before=systemd-suspend.service
Before=systemd-hibernate.service
Before=nvidia-suspend.service
Before=nvidia-hibernate.service

[Service]
Type=oneshot
ExecStart=/usr/local/bin/suspend-gnome-shell.sh suspend

[Install]
WantedBy=systemd-suspend.service
WantedBy=systemd-hibernate.service

/etc/systemd/system/gnome-shell-resume.service:

[Unit]
Description=Resume gnome-shell
After=systemd-suspend.service
After=systemd-hibernate.service
After=nvidia-resume.service

[Service]
Type=oneshot
ExecStart=/usr/local/bin/suspend-gnome-shell.sh resume

[Install]
WantedBy=systemd-suspend.service
WantedBy=systemd-hibernate.service

Then just enable the two new systemd units:

systemctl daemon-reload
systemctl enable gnome-shell-suspend
systemctl enable gnome-shell-resume

This should interrupt gnome-shell in time so it’s not trying to access the graphics hardware. It worked for me.

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