Italiano | English

Good news here too. Since some Linux kernel version, the sony_laptop module has been able to manage natively Vaio’s keyboard backlight, turning it on/off and setting its timeout delay. This is achieved using two controls in

cd /sys/devices/platform/sony-laptop/

kbd_backlight

Turns on/off the keyboard backlight. Usage:

0. Off
1. On

kbd_backlight_timeout

Sets the timeout delay of the keyboard backlight. Usage:

0. 10 seconds
1. 30 seconds
2. 60 seconds
3. Always on

For example lighting up the keyboard can be done with

echo 1 | sudo tee /sys/devices/platform/sony-laptop/kbd_backlight