I disabled the wakeup sources in /proc/acpi/wakeup for further experiment under 3.2.0-61
I found that this bug is disappeared by disabling XPDV wakeup source with 10 times shutdown test. (The disabling command is "echo XPDV > /proc/acpi/wakeup") The information from lspci and acpi wakeup table indicates that XPDV and NIC is the same device. I will look at the PCI driver, too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1322470 Title: [Dell Inspiron 1120] System reboots itself after shut down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1322470/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs