Steam Deck Sleep then Hibernate

sleep-then-hibernate.md

Sleep then Hibernate on Steam Deck

Thanks to: https://github.com/nazar256/publications/blob/main/guides/steam-deck-hibernation.md

Create SWAP File

# create file
sudo swapoff -a # release swapfile
sudo rm /home/swapfile 

sudo dd if=/dev/zero of=/home/swapfile bs=1G count=20  # overwrite swapfile with empty file of 20GiB
sudo mkswap /home/swapfile # reformat swap again
sudo chmod 600 /home/swapfile
sudo e4defrag /home/swapfile
sudo swapon /home/swapfile # activate it back

---

When broken after update

# get ID
sudo filefrag -v /home/swapfile | awk '$1=="0:" {print substr($4, 1, length($4)-2)}'
    # 62105600
sudo findmnt -no UUID -T /home/swapfile
    # cbf1bbb0-a1eb-43eb-9801-ab9666fc9946

sudo vim /etc/default/grub
## GRUB_CMDLINE_LINUX_DEFAULT="loglevel=3 quiet splash plymouth.ignore-serial-consoles resume=/dev/disk/by-uuid/cbf1bbb0-a1eb-43eb-9801-ab9666fc9946 resume_offset=62105600"
sudo update-grub

echo '[Sleep]
AllowSuspend=yes
AllowHibernation=yes
AllowSuspendThenHibernate=yes
HibernateDelaySec=120min
' | sudo tee /etc/systemd/sleep.conf
sudo systemctl daemon-reload 

---

Allow hibernate with swapfile

sudo systemctl edit systemd-logind.service
# add:
# [Service]
# Environment=SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1

Work around hardware problems

echo '#!/bin/bash
PATH=/sbin:/usr/sbin:/bin:/usr/bin

is_bluetooth_ok() {
    echo "Checking Bluetooth status..."
    bluetoothctl discoverable on
    if [ $? -ne 0 ]; then
        echo "Bluetooth is misbehaving."
        return 1  # Bluetooth needs fixing
    else
        echo "Bluetooth is working fine."
        return 0  # Bluetooth is OK
    fi
}

sleep 2 # make sure system woke up completely

if ! is_bluetooth_ok; then
    # if bluetooth problem detected, reinitialize the driver
        (echo serial0-0 > /sys/bus/serial/drivers/hci_uart_qca/unbind ; sleep 1 && echo serial0-0 > /sys/bus/serial/drivers/hci_uart_qca/bind)
fi
' | sudo tee /home/deck/.local/bin/fix-bluetooth.sh

echo '[Unit]
Description=Fix Bluetooth after resume
After=hibernate.target hybrid-sleep.target suspend-then-hibernate.target bluetooth.service

[Service]
Type=oneshot
ExecStart=/home/deck/.local/bin/fix-bluetooth.sh

[Install]
WantedBy=hibernate.target hybrid-sleep.target suspend-then-hibernate.target
' | sudo tee /etc/systemd/system/fix-bluetooth-resume.service
sudo systemctl enable fix-bluetooth-resume.service
sudo ln -s /usr/lib/systemd/system/systemd-suspend-then-hibernate.service /etc/systemd/system/systemd-suspend.service