Añadido Change_Powerv2

2025-09-29 21:16:17 +02:00
parent 3249baf96a
commit 18f655a8ef
1 changed files with 111 additions and 0 deletions
@@ -0,0 +1,111 @@
+#!/usr/bin/env bash
+# Robust power profile applier: nunca peta y siempre intenta un fallback.
+# Uso: power_profile.sh [ac|bat]  (si no pasas arg, autodetecta con AC0/online)
+
+# --- Config perfiles ---
+AC_GOV="performance"
+BAT_GOV="schedutil"           # fallback a powersave si no existe
+AC_EPP="performance"          # si hay amd-pstate-epp; si no, ignorado
+BAT_EPP="balance_power"
+AC_BOOST="1"                  # si /sys/devices/system/cpu/cpufreq/boost existe
+BAT_BOOST="0"
+
+MODE="${1:-}"
+
+log(){ echo "[power-profile] $*"; logger -t power-profile -- "$*"; }
+
+# Autodetecta modo si no se pasa arg
+if [[ -z "$MODE" ]]; then
+  if [[ -r /sys/class/power_supply/AC0/online ]] && [[ "$(cat /sys/class/power_supply/AC0/online 2>/dev/null)" == "1" ]]; then
+    MODE="ac"
+  else
+    MODE="bat"
+  fi
+fi
+
+# Normaliza modo
+case "$MODE" in
+  ac|AC) MODE="ac" ;;
+  bat|battery|BAT) MODE="bat" ;;
+  *) log "Modo inválido: '$MODE' (usa ac|bat)"; exit 0 ;;
+esac
+
+read_avail_govs() {
+  local f="/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
+  [[ -r "$f" ]] && cat "$f" || echo ""     # puede venir vacío con algunos drivers
+}
+
+try_set_governor() {
+  local desired="$1"
+  local alt1 alt2
+  # Orden de preferencia de fallback según modo
+  if [[ "$MODE" == "ac" ]]; then
+    alt1="performance"; alt2="schedutil"
+  else
+    alt1="schedutil";   alt2="powersave"
+  fi
+  local applied=""
+  local govs_to_try=("$desired" "$alt1" "$alt2" "powersave" "performance" "schedutil")
+  # Elimina duplicados manteniendo orden
+  local uniq=(); local seen=""
+  for g in "${govs_to_try[@]}"; do
+    [[ "$seen" =~ (^| )"$g"( |$) ]] || { uniq+=("$g"); seen+="$g "; }
+  done
+  # Si sabemos los disponibles, filtra
+  local avail; avail="$(read_avail_govs)"
+  if [[ -n "$avail" ]]; then
+    local filtered=()
+    for g in "${uniq[@]}"; do
+      grep -qw -- "$g" <<<"$avail" && filtered+=("$g")
+    done
+    [[ ${#filtered[@]} -gt 0 ]] && uniq=("${filtered[@]}")
+  fi
+  for g in "${uniq[@]}"; do
+    local ok=1
+    for f in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do
+      [[ -w "$f" ]] || continue
+      printf "%s" "$g" > "$f" 2>/dev/null || { ok=0; break; }
+    done
+    if [[ $ok -eq 1 ]]; then applied="$g"; break; fi
+  done
+  if [[ -n "$applied" ]]; then
+    log "governor=$applied"
+  else
+    log "no se pudo aplicar ningún governor (driver/permisos)."
+  fi
+}
+
+set_epp_all() {
+  local epp="$1"
+  shopt -s nullglob
+  local files=(/sys/devices/system/cpu/cpu*/cpufreq/energy_performance_preference)
+  [[ ${#files[@]} -eq 0 ]] && return 0
+  for f in "${files[@]}"; do
+    printf "%s" "$epp" > "$f" 2>/dev/null || true
+  done
+  log "epp=$epp"
+}
+
+set_boost() {
+  local v="$1" f="/sys/devices/system/cpu/cpufreq/boost"
+  [[ -w "$f" ]] && { printf "%s" "$v" > "$f" 2>/dev/null || true; log "boost=$v"; }
+}
+
+apply_ac() {
+  try_set_governor "$AC_GOV"
+  set_epp_all "$AC_EPP"
+  set_boost "$AC_BOOST"
+}
+apply_bat() {
+  try_set_governor "$BAT_GOV"
+  set_epp_all "$BAT_EPP"
+  set_boost "$BAT_BOOST"
+}
+
+if [[ "$MODE" == "ac" ]]; then
+  apply_ac
+else
+  apply_bat
+fi
+
+exit 0