Comment 40 for bug 119308

After some tests with a machine that wouldn't shut down since upgraded to Gutsy and was shutting down perfectly in Feisty, I could trace the problem down to the "Network Manager".

This machine uses a Wi-Fi network connection using ndiswrapper + Network Manager, and hangs shutting down in Gutsy.

I have moved the network connection out of the Network Manager, to standard "Debian" interface management defined with all relevant parameters in /etc/network/nterfaces.

This has solved the problem immediately, and now the machine shuts down perfectly.

I feel this bug puts together a number of issues that may be different albeit with the same end effect : machine doesn't halt properly, but it seems that the question doesn't always relate to kernel or ACPI.

It would be interesting to isolate the problem for machine which used to shut down properly in Feisty but don't anymore in Gutsy. In my case, the Network Manager is clearly the cause.