On Wed, Feb 18, 2009 at 11:02 AM, Leonid Grinberg <lgrinberg@xxxxxxxxx> wrote: > After many hours of searching, I still cannot figure it out. The > problem is definitely not in the xset dpms force off command -- it's > in the fact that ACPI simply stops realising that the lid is closed. > Is there anything that can be done? Is it that the backlight stays on after close, or does it stay off and being opened? Have you tried any commands other than xset, such as xscreensaver, etc.? I have the exact same laptop and experience no such behaviour.