Re: Lenovo x220 - hangs on shutdown

On Sun, Jul 21, 2013 at 07:12:33PM +0300, Konstantin Belousov wrote:
> On Sun, Jul 21, 2013 at 09:20:45AM +0200, Joel Dahl wrote:
> > On Tue, Jul 16, 2013 at 10:48:35PM +0200, Joel Dahl wrote:
> > > Hi,
> > > 
> > > Yesterday I upgraded my Lenovo x220 to the latest current (r253368). Now it hangs when I do a shutdown from an xterm. The screen just goes black and the fan never spins down. It doesn't respond to ping.
> > > 
> > > It didn't do this while I was running a current from mid-June.
> > > 
> > > Any specific revision I should try to back out before I start a time consuming binary search?
> > 
> > I found it. r252652 works. r252653 does not.
> 
> What is the chipset on your machine ?

Intel Core i7-2640M / Mobile Intel QM67 Express Chipset

> Do you have AMT ?  If yes, please configure serial over LAN using AMT
> and use it for the console, to obtain the usual debugging information
> from the kernel.  At least, 'ps' output from ddb is needed.

I found "Intel (R) AMT Control" in the BIOS. It's enabled. I haven't figured
out how it works yet though.

-- 
Joel
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