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From: Sergio de Almeida Lenzi <lenzi.sergio@gmail.com>
To: John Baldwin <jhb@freebsd.org>
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	<201103280823.23502.jhb@freebsd.org>
Date: Mon, 28 Mar 2011 13:02:39 -0300
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Subject: Re: Atheros 9285 & Atheros AR8131
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> 
> This is probably due to a problem FreeBSD has with ACPI initialization 
> sometimes wiping out the state in PCI-PCI bridges for resource windows and not 
> gracefully recovering from that.  I have some early work in progress to 
> address this, but it will be a while before I have something ready for 
> testing.
> 

it is the acer bios that is does not follow acpi standard... I have the
same problem
in an old acer 5050 no solution still...   I had to install linux in
that notebook.

My advice is not to buy acer... they are cheap any good... 

Well let's wait for the Baldwin fix....