Add a script to disable power saving

setup_utility.sh

@@ -92,6 +92,8 @@ if [ -z "$1" ]; then
   sudo chmod -R +x "$DIR/subscripts"
   sudo chmod -R -x "$DIR/subscripts/5Udev_rules/DISREGARD_udev_rules"
   sudo chmod +x "$DIR/subscripts/5Udev_rules/DISREGARD_udev_rules"
+  sudo chmod -R -x "$DIR/subscripts/3PostInstall/DISREGARD"
+  sudo chmod +x "$DIR/subscripts/3PostInstall/DISREGARD"
 else
   folder_path="$1"
   first_run=false

subscripts/3PostInstall/2Disable_power_saving.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+function disable_hibernation() {
+    echo "Disabling hibernation"
+    sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
+    echo "Hibernation disabled"
+}
+
+function disable_wlan0_power_saving() {
+    # Check if an interface "wlan0" exists, if it doesn't the computer either doesn't have a WiFi card or "Predictable Network Interface Names" feature is enabled, meaning
+    # the user hasn't ran the "Fix network interface names" script yet.
+
+    if ! ip link show wlan0 &> /dev/null; then
+        echo "No wlan0 interface found. You probably forgot to run the 'Fix network interface names' script first."
+    else
+        echo "Disabling power saving mode on wlan0 interface"
+
+        # Disable power saving mode on wlan0 interface.
+        sudo iw wlan0 set power_save off
+
+        # The setting does not persist across reboots, so we also create a systemd service to disable it on boot.
+        sudo cp subscripts/3PostInstall/DISREGARD/disable-wlan0-power_saving.service /etc/systemd/system/disable-wlan0-power_saving.service
+        sudo systemctl daemon-reload
+        sudo systemctl enable --now disable-wlan0-power_saving.service
+
+        echo "Power saving mode on wlan0 interface disabled"
+    fi
+}
+
+function set_power_mode() {
+
+    # Most times the power modes available are "performance", "balanced" and "power-saver", 
+    # but sometimes some are missing (for example on Jetsons only power-saver" and "balanced" are available)
+    # For this reason we check which modes are available and set the highest one available.
+    if powerprofilesctl list | grep -q "performance"; then
+        echo "Setting power mode to performance"
+        sudo powerprofilesctl set performance
+    elif powerprofilesctl list | grep -q "balanced"; then
+        echo "Setting power mode to balanced"
+        sudo powerprofilesctl set balanced
+    else
+        echo "Power mode names on this system are unrecognized. Run 'powerprofilesctl list' to check which power modes are available and report this to the install script developer."
+    fi
+}
+
+function set_jetson_power_mode() {
+    echo "Setting Jetson power mode to 25W. Reboot is required for the change to take effect."
+    sudo nvpmodel --mode 3
+}
+
+disable_hibernation
+disable_wlan0_power_saving
+set_power_mode
+
+# This should be last because it will ask for reboot, which will stop the script from running any further.
+if grep -q "NVIDIA Jetson" /proc/device-tree/model > /dev/null 2>&1; then
+    set_jetson_power_mode
+fi
+
+exit 0

subscripts/3PostInstall/DISREGARD/disable-wlan0-power_saving.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Disable powersaving mode for the wlan0 interface
+After=network.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/sbin/iw wlan0 set power_save off
+
+[Install]
+WantedBy=multi-user.target