diff -ruN hal-0.5.7-old/tools/hal-system-lcd-set-brightness hal-0.5.7/tools/hal-system-lcd-set-brightness
--- hal-0.5.7-old/tools/hal-system-lcd-set-brightness	2006-03-15 23:01:12.000000000 +0100
+++ hal-0.5.7/tools/hal-system-lcd-set-brightness	2006-03-15 23:04:54.000000000 +0100
@@ -60,7 +60,7 @@
 elif [ "$HAL_PROP_LAPTOP_PANEL_ACCESS_METHOD" = "sony" ]; then
 	# echo "{1..8}" > /proc/acpi/sony/brightness
 	# http://popies.net/sonypi/2.6-sony_acpi4.patch
-	echo "$value" > $HAL_PROP_LINUX_ACPI_PATH
+	echo "$((value + 1))" > $HAL_PROP_LINUX_ACPI_PATH
 elif [ "$HAL_PROP_LAPTOP_PANEL_ACCESS_METHOD" = "omnibook" ]; then
 	# echo "{0..7}" > /proc/omnibook/lcd
 	# http://bugzilla.gnome.org/show_bug.cgi?id=331458