Update: I discovered that my computer does not power off because Edgy Eft (6.10) comes with a SMP-enabled kernel. Dapper Drake (6.06.1) comes with a non-SMP kernel, so power off worked before upgrading to Edgy Eft.
For the power off to occur, apm module needs to be loaded with the option(s) smp=1 and/or power_off=1. It would be nice if the smp=1 and/or power_off=1 options of the apm module were default in Ubuntu. -- Computer with APM does not shut down. https://launchpad.net/bugs/69880 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
