I've recently purchased a new laptop and I've crashed head-on with the problem that brightness control works perfectly until suspend-to-RAM is issued; after resuming from RAM the brightness controls are completely unresponsive and there the brightness is locked to a random level. The problem however solves itself magically upon a power cycle, be that a reboot or just a suspend-to-disk. Let alone the obvious considerations on power consumption for a laptop, the brightness situation is annoying too in terms of eye strain. This bug is not new and has been tracked in: https://bugzilla.kernel.org/show_bug.cgi?id=21012 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=599768 and several other distro bugzillas. I've never hacked around acpi but if anyone has any ideas of pointers where to start then I'll be more than eager to get to work. Ricardo -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html