Distribution: Gentoo Hardware Environment: Compaq Armada M700 Problem Description: The directory /proc/acpi/button no longer exists i 2.6.13-rc5. This is a problem, as it complicates acpi-scripts which suspend the laptop when the lid is closed (it is very nice to know of the button event you receive is because the lid is closed or opened). Reverting the patch at http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bd4698dad3023ae137b366c736e29ca6eaf3b9f7 solves the problem, but that patch also contains a bug-fix.
It seems that the newest available git-version has this fixed. Thanks
shipped in 2.6.13-rc6 -- closing