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I've been using my Vaio VPCF121FX for over a year now, running Ubuntu 10.10 and then 11.04 and my backlight keyboard has always worked flawlessly. Until now, I just install Ubuntu 11.10 and this feature seems to be missing or forgotten by the developers.

Truth be told, I'm a late-at-night kinda typer so this is something I do use a lot in my day-to-day (or should I say nigth-to-night) laptop environment.

Does anyone know how to fix it?

Braiam
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Azrael
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2 Answers2

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Until a fix is released, enter this in a terminal:

echo 1 | sudo tee /sys/devices/platform/sony-laptop/kbd_backlight
EboMike
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Developing on EboMike's answer: you might want to update /etc/rc.local, adding the line

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

just before exit 0 line. This way it is automatically executed when one reboots.

noname
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