>> Does anyone know which kernel option would be responsible for >> /sys/class/backlight/intel_backlight? I've disabled some backlight >> stuff in the kernel but the directory still appears. I get screen >> backlight control on my laptop if I do: >> >> echo 0 > /sys/class/backlight/intel_backlight/brightness >> >> but if xlockmore blanks my screen, I have to issue the above again >> before screen backlight control works again. I also have acpi_video0 >> in /sys/class/backlight and I think removing intel_backlight might fix >> the problem. >> >> I could try deleting the directory. Is that safe? Are the files and >> folders in /sys generated dynamically at boot? > > The /sys directory is like /proc; it's a virtual directory which > serves as interface to several kernel knobs. I don't think you can > remove any dir from it, and if you do, next boot it will show up > again.
You're right, "operation not permitted" there. - Grant
