I am supposed to have these files and folders:
proc/acpi/button/lid/LID/state
But I only have this:
proc/acpi/button/
and inside it there is only the "power" button.
Result, the LID events on my laptop don't work. Why is this not created for my Sony Vaio laptop? (Neomagic gfx card btw).
Please not that I do have a default handler.sh file, and i have correctly inputed the /etc/acpi/events/lid and /etc/acpi/actions/lid.sh which call the sleep.sh file (modified for archlinux from here: http://enterprise.linux.com/article.pl?sid=06/05/24/1716222&tid=121 ). But the problem exists BEFORE trying to execute any of these files. I investigated, and the problem is that the acpi/kernel can't "see" a lid device at all and so it doesn't create it in its /proc system. Therefore, none of the handler.sh and other scripts recognize the lid device and so they don't execute.

Please note that this used to work a few months ago.

As for the LCD light going OFF when closing the lid, that works, but that's done in hardware, so it's not relevant in this bug report.