System wakes immediately after sleep

Ask Fedora
1

Hello all, I tried to find a solution for this but I’m a bit lost

I am running Fedora 42 KDE Wayland on an Asus Proart PX13 laptop with Nvidia gpu disabled via supergfxctl

The system wakes right after putting to sleep.

Here is my journalctl ouput. It looks a bit different if I try with the Nvidia enabled. I’ve also tried sleep on USB Live Boot it doesn’t work either

“Filebin | n4p7ybmlhrltq8t3”

If someone could peek through the logs and point me in the right direction it would be really appreciated. Thanks

2

I’d try to switch to deep sleep mode instead of s2idle, you can easily try it by adding kernel parameter

mem_sleep_default=deep

while booting and check is it suspending properly or not.
But first you need to check if the deep mode is even available in your system:

cat /sys/power/mem_sleep

it should show something like

[s2idle] deep
3

Thanks for the reply. The output I get from

cat /sys/power/mem_sleep

Is just

[s2idle]

Does that mean deep sleep mode isn’t available with my hardware?

4

exactly.

have you tried to enable airplane mode first ( disabling wifi and bluetooth )?

systemd session freeze:

from your logs:

Jun 02 14:03:08 fedora systemd-sleep[6718]: User sessions remain unfrozen on explicit request ($SYSTEMD_SLEEP_FREEZE_USER_SESSIONS=0).
Jun 02 14:03:08 fedora systemd-sleep[6718]: This is not recommended, and might result in unexpected behavior, particularly
Jun 02 14:03:08 fedora systemd-sleep[6718]: in suspend-then-hibernate operations or setups with encrypted home directories.
Jun 02 14:03:08 fedora systemd-sleep[6718]: Performing sleep operation 'suspend'...
Jun 02 14:03:12 fedora systemd-sleep[6718]: System returned from sleep operation 'suspend'.

You could try to enable session freeze, and see if things improve, see

5

You could check your BIOS if there any settings about S3 (deep) sleep mode.
Probably you should update the BIOS for that.
Also you could try to unlock advanced BIOS feautures and patch DSDT tables in order to get deep sleep (S3) jn your machine though it could be unsafe.

6

Thanks for the help all. I found a solution

I did try airplane mode and enabling system freeze but still waking. I have yet to check my bios and see if I can enable deep sleep.

Some Asus specific device was waking me from sleep. I narrowed it down with ChatGPT and disabled it with this line. The sleep started working:

echo disabled | sudo tee /sys/bus/i2c/devices/i2c-ASCP1A00:00/power/wakeup

Then made a systemd service to disable wakeup for that device on every boot. I guess this will work

1 Like
7

I have a asus pro 15 and I have the same issue. Could you please explain what you did step by step?

8

Run this:

grep . /sys/bus/i2c/devices/*/power/wakeup

You will get an output like this:

/sys/bus/i2c/devices/i2c-ASCP1A00:00/power/wakeup:disabled
/sys/bus/i2c/devices/i2c-ASUS2020:00/power/wakeup:enabled
/sys/bus/i2c/devices/i2c-ELAN9008:00/power/wakeup:enabled

Disable each one at a time and test sleep

echo disabled | sudo tee /sys/bus/i2c/devices/i2c-ASCP1A00:00/power/wakeup

If disabling one of them fixes sleep you can make a systemd service to disable it automatically at boot

9

I disabled devices in the /sys/bus/i2c/devices/*/power/wakeup path but it didn’t work.
I found this line of log bluetoothd[1713]: Controller resume with wake event 0x0 and asked Copilot for a solution. She proposed your solution but with one more solution:

Bonus: Check /proc/acpi/wakeup

This file lists devices that can wake the system. You can disable them like this:

cat /proc/acpi/wakeup
echo "DEVICE" | sudo tee /proc/acpi/wakeup

Replace "DEVICE" with the actual device name (like XHCI or LID).

To keep the setting after reboot, you can add a script to your system’s startup:

  1. Create a script (e.g., /etc/systemd/system/wakeup-toggle.service):
[Unit]
Description=Enable ACPI Wakeup Devices
After=suspend.target

[Service]
Type=oneshot
ExecStart=/bin/sh -c 'echo "XHCI" > /proc/acpi/wakeup'

[Install]
WantedBy=multi-user.target
  1. Enable the service:
sudo systemctl enable wakeup-toggle.service

Disabling the RP12 device on my asus pro 15 solved the problem.

> cat /proc/acpi/wakeup
RP12	  S4	*disabled  pci:0000:00:01.0

Thanks

Laptop wakes up immediately after suspending
10

Thank you, thank you, thank you!! I spent weeks trying to find this solution. It helped resolved the problem on my Debian Trixie installation.

For anyone who needs it, I created the following systemd unit file to implement this fix. (Caution: use plain single quotes on the ExecStart line… markdown is converting it to curly ones.)

[Unit]
Description=Prevent unknown I2C device on Asus ProArt PX13 from waking system.
After=multi-user.target

[Service]
Type=oneshot
ExecStart=/bin/sh -c ‘echo disabled > /sys/bus/i2c/devices/i2c-ASCP1A00:00/power/wakeup’
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target

I also had to create a second unit file to yank out the wireless driver everytime the computer sleeps (though manually switching to airplane mode may work too):

[Unit]
Description=Disable mt7925e during suspend
Before=sleep.target
StopWhenUnneeded=yes

[Service]
User=root
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/sbin/modprobe -r mt7925e
ExecStop=/usr/sbin/modprobe mt7925e

[Install]
WantedBy=sleep.target