diff --git a/bin/omarchy-powerprofiles-set b/bin/omarchy-powerprofiles-set
index 86c3ac0cea..2cbfda3d53 100755
--- a/bin/omarchy-powerprofiles-set
+++ b/bin/omarchy-powerprofiles-set
@@ -1,13 +1,36 @@
 #!/bin/bash
 
-# Set the power profile to the requested level, falling back to balanced
-# if the requested profile isn't available on this machine.
+# Set the power profile based on AC/battery state, falling back to balanced
+# if the desired profile isn't available on this machine.
 #
-# Usage: omarchy-powerprofiles-set <ac|battery>
+# Usage:
+#   omarchy-powerprofiles-set            # auto-detect from power-supply state
+#   omarchy-powerprofiles-set ac
+#   omarchy-powerprofiles-set battery
+
+action="${1-}"
+
+# Auto-detect when called with no argument: treat any Mains or USB
+# power-supply device reporting online=1 as "on AC". This handles
+# USB-C only laptops where the legacy AC device may not fire udev
+# events, and also avoids false negatives from per-port USB-C devices
+# that are present-but-empty (online=0) while another port supplies power.
+if [[ -z $action ]]; then
+  action=battery
+  for ps in /sys/class/power_supply/*; do
+    [[ -r $ps/online && -r $ps/type ]] || continue
+    type=$(cat "$ps/type")
+    [[ $type == "Mains" || $type == "USB" ]] || continue
+    if [[ $(cat "$ps/online") == "1" ]]; then
+      action=ac
+      break
+    fi
+  done
+fi
 
 mapfile -t profiles < <(powerprofilesctl list | awk '/^\s*[* ]\s*[a-zA-Z0-9\-]+:$/ { gsub(/^[*[:space:]]+|:$/,""); print }')
 
-case "$1" in
+case "$action" in
   ac)
     # Prefer performance, fall back to balanced
     if [[ " ${profiles[*]} " == *" performance "* ]]; then
diff --git a/install/config/powerprofilesctl-rules.sh b/install/config/powerprofilesctl-rules.sh
index 9b5a71a637..60ea436520 100644
--- a/install/config/powerprofilesctl-rules.sh
+++ b/install/config/powerprofilesctl-rules.sh
@@ -1,9 +1,13 @@
 if omarchy-battery-present; then
   cat <<EOF | sudo tee "/etc/udev/rules.d/99-power-profile.rules"
-SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="0", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-power-profile-battery --property=After=power-profiles-daemon.service $HOME/.local/share/omarchy/bin/omarchy-powerprofiles-set battery"
-SUBSYSTEM=="power_supply", ATTR{type}=="Mains", ATTR{online}=="1", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-power-profile-ac --property=After=power-profiles-daemon.service $HOME/.local/share/omarchy/bin/omarchy-powerprofiles-set ac"
+SUBSYSTEM=="power_supply", ATTR{type}=="Mains", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-power-profile-%E{SEQNUM} --property=After=power-profiles-daemon.service $HOME/.local/share/omarchy/bin/omarchy-powerprofiles-set"
+SUBSYSTEM=="power_supply", ATTR{type}=="USB", RUN+="/usr/bin/systemd-run --no-block --collect --unit=omarchy-power-profile-%E{SEQNUM} --property=After=power-profiles-daemon.service $HOME/.local/share/omarchy/bin/omarchy-powerprofiles-set"
 EOF
 
+  # Ensure the daemon is running and starts on boot. The arch package preset
+  # leaves it disabled, which would silently break profile switching.
+  sudo systemctl enable --now power-profiles-daemon
+
   sudo udevadm control --reload 2>/dev/null
   sudo udevadm trigger --subsystem-match=power_supply 2>/dev/null
 fi
diff --git a/migrations/1777098818.sh b/migrations/1777098818.sh
new file mode 100644
index 0000000000..a9de7e1b86
--- /dev/null
+++ b/migrations/1777098818.sh
@@ -0,0 +1,3 @@
+echo "Fix power profile auto-switching on USB-C only machines and ensure power-profiles-daemon is enabled"
+
+source "$OMARCHY_PATH/install/config/powerprofilesctl-rules.sh"