Add CPU power management tools and dynamic frequency scaling

- Add cpu-power-control.sh: Script for managing CPU power limits and presets
- Add monitor-cpu-freq.sh: Real-time CPU frequency monitoring tool
- Add test-single-core-boost.sh: Tool for testing single-core boost frequencies
- Add BIOS-FIX.md: Documentation for BIOS configuration fix
- Update tlp.conf: Configure dynamic CPU frequency scaling (400MHz-4.2GHz on AC, 400MHz-2.2GHz on battery)
- Add Intel RAPL power limit controls for CPU power capping
- Enable dynamic frequency scaling with proper platform profiles
- Fix CPU frequency stuck at 1.6GHz issue (required BIOS SpeedStep disable)
- Configure balanced battery mode with 2.2GHz max for responsiveness

scripts/monitor-cpu-freq.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Real-time CPU Frequency Monitor
+# Shows actual CPU frequencies and helps identify boost behavior
+
+echo "=== Real-time CPU Frequency Monitor ==="
+echo "Press Ctrl+C to stop"
+echo ""
+echo "Note: Modern Intel CPUs dynamically adjust frequency based on:"
+echo "  - Workload type (single vs multi-core)"
+echo "  - Power limits (TDP)"
+echo "  - Temperature"
+echo "  - Energy efficiency preferences"
+echo ""
+
+# Check if turbostat is available
+if command -v turbostat >/dev/null 2>&1; then
+    echo "Using turbostat for accurate frequency monitoring..."
+    echo ""
+    sudo turbostat --quiet --show Core,CPU,Busy%,Bzy_MHz,PkgWatt --interval 2
+else
+    echo "turbostat not available, using basic monitoring..."
+    echo ""
+    echo "Timestamp       | CPU0    CPU1    CPU2    CPU3    | Avg MHz | Governor  | Temp"
+    echo "----------------+---------------------------------+---------+-----------+------"
+    
+    while true; do
+        TIMESTAMP=$(date +"%H:%M:%S")
+        
+        # Get frequencies
+        FREQ0=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq)
+        FREQ1=$(cat /sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq)
+        FREQ2=$(cat /sys/devices/system/cpu/cpu2/cpufreq/scaling_cur_freq)
+        FREQ3=$(cat /sys/devices/system/cpu/cpu3/cpufreq/scaling_cur_freq)
+        
+        # Convert to MHz
+        F0=$((FREQ0 / 1000))
+        F1=$((FREQ1 / 1000))
+        F2=$((FREQ2 / 1000))
+        F3=$((FREQ3 / 1000))
+        
+        # Calculate average
+        AVG=$(( (F0 + F1 + F2 + F3) / 4 ))
+        
+        # Get governor
+        GOV=$(cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor)
+        
+        # Get temperature if available
+        if [ -r "/sys/class/thermal/thermal_zone0/temp" ]; then
+            TEMP_RAW=$(cat /sys/class/thermal/thermal_zone0/temp)
+            TEMP=$((TEMP_RAW / 1000))
+        else
+            TEMP="N/A"
+        fi
+        
+        printf "%s | %4d %4d %4d %4d | %4d MHz | %-9s | %s°C\n" \
+            "$TIMESTAMP" "$F0" "$F1" "$F2" "$F3" "$AVG" "$GOV" "$TEMP"
+        
+        sleep 2
+    done
+fi