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From: "Ganael LAPLANCHE" <ganael.laplanche@martymac.org>
To: matt <sendtomatt@gmail.com>,John Baldwin <jhb@freebsd.org>
Subject: Re: Fixing suspend/resume on Lenovo x220
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Date: Tue, 18 Jun 2013 06:46:07 +0000 (UTC)
Cc: freebsd-acpi@freebsd.org, Ganael LAPLANCHE <ganael.laplanche@martymac.org>
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On Fri, 14 Jun 2013 16:02:59 -0700, matt wrote

Hi Matt,

> I think if X is loaded or certain USB peripherals are attached 
> it quietly panics at resume. You'll note that we are sending 
> D3 to the USB bridges, which complain loudly before suspend is 
> complete...

I have tried to unload a maximum of kernel modules as well as disabling
everything in the BIOS (USB, wifi, SD card reader, ethernet card, ...),
same problem at resume.

> I think in the hackintosh world, they are using a 
> custom DSDT that prevents that or something to allow OS X to resume.

I have Googled a bit but could not find any custom/fixed DSDT for the
x220. Do you have a link ?

Best regards,

--
Ganael LAPLANCHE <ganael.laplanche@martymac.org>
http://www.martymac.org | http://contribs.martymac.org
FreeBSD: martymac <martymac@FreeBSD.org>, http://www.FreeBSD.org