Package: acpi-support
Version: 0.137-5
Severity: wishlist
Tags: patch
On NEC Lavie lm370 notebook models the
integrated brightness control function keys do not work.
The following changes makes them usable:
Make keys known to kernel by adding to file /etc/rc.local :
# Get Brightness control keys working; map to XF86 Brightness keys
# up
setkeycodes 65 225
# down
setkeycodes 67 224
Add the event handler to /etc/acpi/events/brightness :
======================
event=video/brightness*
action=/etc/acpi/brightness.sh %e
======================
Add the script /etc/acpi/brightness.sh (attached)
-- System Information:
Debian Release: wheezy/sid
APT prefers testing
APT policy: (800, 'testing'), (500, 'stable'), (70, 'unstable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
#!/bin/bash
# Created from sonybright.sh to
# support also other computers
# For example: NEC LaVie lm370
test -f /usr/share/acpi-support/key-constants || exit 0
# Use variables for device files
BRIGHTNESS_DEV="/sys/class/backlight/*/brightness"
MAX_BRIGHTNESS_DEV="/sys/class/backlight/*/max_brightness"
# Try wildcard catcher
# BRIGHTNESS=$(cat /sys/class/backlight/sony/brightness)
BRIGHTNESS=$(cat $BRIGHTNESS_DEV )
# Get max_brightness also
MAX_BRIGHTNESS=$(cat $MAX_BRIGHTNESS_DEV)
# Use BRTUP/BRTDN ($2) as parameters
if [ "x$2" = "xBRTDN" ]; then
if [ "x$BRIGHTNESS" != "x0" ]; then
BRIGHTNESS=$(( $BRIGHTNESS - 1 ))
echo $BRIGHTNESS > $BRIGHTNESS_DEV
fi
elif [ "x$2" = "xBRTUP" ]; then
if [ "x$BRIGHTNESS" != "x${MAX_BRIGHTNESS}" ]; then
BRIGHTNESS=$(( $BRIGHTNESS + 1 ))
echo $BRIGHTNESS > $BRIGHTNESS_DEV
fi
else
echo >&2 Unknown argument $2
fi
