[SOLVED...sort of] Backlit keyboard -- MacBook Air, 2012
Posted: Wed Nov 14, 2012 7:19 pm
Is there a reason the backlit keyboard does not work on MATE vs Cinnamon (using the release candidate, Nadia)? With Cinnamon, there's a nice icon that pops up when I press the F5 and F6 keys to increase and decrease the brightness of the keyboard -- using MATE, there's nothing. I prefer MATE and would really like to be able use this feature. Thanks for any help.
UPDATE:
I've been trying out a bunch of distros and I'm currently using Kubuntu 12.10. I had the same issue where the F5 and F6 buttons were not mapped properly. Here's the hack-job I did to get it to work by using /etc/acpi/asus-keyboard-backlight.sh as a template.
Open up the ol' terminal and change the permissions of the "brightness" file so you don't have to be root
Then, I mapped the following script to the F5 key to reduce the brightness by a factor of 25 (max is 255)
I then mapped the F6 key using the same script, but changing to
Annnnnnd that seems to work! It's not the most elegant of solutions, but it works!
UPDATE:
I've been trying out a bunch of distros and I'm currently using Kubuntu 12.10. I had the same issue where the F5 and F6 buttons were not mapped properly. Here's the hack-job I did to get it to work by using /etc/acpi/asus-keyboard-backlight.sh as a template.
Open up the ol' terminal and change the permissions of the "brightness" file so you don't have to be root
Code: Select all
sudo chmod 777 /sys/class/leds/smc::kbd_backlight/brightnessCode: Select all
#!/bin/sh
KEYS_DIR=/sys/class/leds/smc::kbd_backlight
test -d $KEYS_DIR || exit 0
MIN=0
MAX=$(cat $KEYS_DIR/max_brightness)
VAL=$(cat $KEYS_DIR/brightness)
VAL=$((VAL-25))
if [ "$VAL" -lt $MIN ]; then
VAL=$MIN
elif [ "$VAL" -gt $MAX ]; then
VAL=$MAX
fi
echo $VAL > $KEYS_DIR/brightness
Code: Select all
VAL=$((VAL-25))Code: Select all
VAL=$((VAL+25))