Comment 45 for bug 908825

Almost "all" ubuntu from 11.04 (Natty) and older does NOT have the but, all acpi event are recognized correctly.
From ubuntu 11.10 the bug appears, acpi event disappears at all. From 11.10 an next releases I've try some solution like updating acpi_support package or updating the kernel of future release but nothing happen.

The next think I'll try is to try other live distribution in order to understand if this bug is due to some "ubuntu personalization" or it is a kernel bug that affect all distribution.

If it is useful, I can do an apport-collect from a natty live where the acpi event are working right.