copied this from my laptop's /etc/rc.local

disable_laptop_lid.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# prevent detection of lid state by unbinding it from the driver because for
+# whatever fucking reason some fucking software keeps detecting it and
+# suspending the laptop despite that being turned off
+echo -n "Disabling lid switch... "
+pushd /sys/bus/acpi/drivers/button/ > /dev/null
+
+# get a list of registered buttons for ACPI actions (the janky way)
+TEMP=$(find -maxdepth 1 -type l)
+# go through the list and if the button has "LID" in its device path file, unbind it
+while [ -n "$TEMP" ];
+  do
+    if [ $(grep -c "LID" $(echo "$TEMP" | head -n1)/path 2>/dev/null) -gt 0 ] 2>/dev/null
+      then
+        echo "$TEMP" | head -n1 | sed 's/^.\///' > unbind
+      fi
+    TEMP=$(echo "$TEMP" | sed "1d")
+  done
+
+popd > /dev/null
+echo "Done."
+# lid button hopefully disabled