Comment 3 for bug 364592

This is not an Ubuntu problem, at least not on the Acer Aspire One D250. I upgraded to the latest BIOS (on the Acer site; for the D250 it's version 1.06 that I installed) and the lid events now work properly.

There are two problems with this still, one minor, one major but one-time only:

1. When you power off, you have to wait until the system halts before closing the lid or it reboots! Not sure I understand why, but it's easy enough, you just need 15 seconds of patience.

2. Acer in their wisdom made the BIOS updating program a Windows executable. This gave me real trouble (WINE won't run it properly, and I didn't have the ambition to disassemble). I installed BartPE on a USB thumb drive and booted from the stick, and then it worked.

Of course if you flash your BIOS you do it at your own risk. I was successful but if you make a brick out of your machine that is your responsibility alone.