From 045d76eadd078b7cd9247fdc27ee00242d3782ac Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Tue, 20 Aug 2024 21:01:18 -0300
Subject: Initial import

---
 powersaving | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100755 powersaving

(limited to 'powersaving')

diff --git a/powersaving b/powersaving
new file mode 100755
index 0000000..75c5605
--- /dev/null
+++ b/powersaving
@@ -0,0 +1,35 @@
+#!/bin/sh
+# from https://geoff.greer.fm/2017/07/16/thinkpad-x62/
+
+# Disable the NMI watchdog
+echo '0' > '/proc/sys/kernel/nmi_watchdog';
+
+# Runtime power management for I2C devices
+for i in /sys/bus/i2c/devices/*/device/power/control ; do
+  echo auto > ${i}
+done
+
+# Runtime power-management for PCI devices
+for i in /sys/bus/pci/devices/*/power/control ; do
+  echo auto > ${i}
+done
+
+# Runtime power-management for USB devices
+for i in /sys/bus/usb/devices/*/power/control ; do
+  echo auto > ${i}
+done
+
+# Low power SATA
+for i in /sys/class/scsi_host/*/link_power_management_policy ; do
+  echo min_power > ${i}
+done
+
+# Disable Wake-on-LAN on ethernet port
+#ethtool -s wlan0 wol d;
+#ethtool -s eth0 wol d
+
+#Enable Audio codec power management
+echo '1' > '/sys/module/snd_hda_intel/parameters/power_save';
+
+# Low power wireless
+iw dev wlan0 set power_save on
-- 
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