ubuntu 14.10怎么保存屏幕亮度

[KOSKERS]

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
sudo echo 490 > /sys/class/backlight/intel_backlight/actual_brightness;
exit 0


不管加不加sudo都没用。

[qy117121]

cat /etc/rc.local
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
echo 45 > /sys/class/backlight/acpi_video0/brightness
echo 2431 > /sys/class/backlight/intel_backlight/brightness

exit 0


好吧，我这是14.04

[KOSKERS]

qy117121, 事了你的方法可以了。O(∩_∩)O谢谢