A quick update. It looks like this is to do with an irq conflict.
I can get the machine to powerdown in two scenarios: 1) disabling one core of my Athlon X2 245e 2) removing the TV tuner card -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/721706 Title: "System halted" but system will not powerdown -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
