Comment 6 for bug 159255

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Андон Сикавица (andon-sikavica) wrote :

The "echo -n VALUE > /proc/acpi/video/VGA/LCD/brightness" does not work on my Vostro 1000 on Ubuntu 7.10 64bit. It gives "bash: /proc/.../brightness: Permission denied". If I do "cat /proc/.../brightness" it gives:

levels: 100 37 12 25 37 50 62 75 87 100
current: 0

Also, the brightness keys are working in the GRUB menu.