From: "H. Peter Anvin" <hpa@zytor.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Peter Chubb <peter.chubb@nicta.com.au>, linux-kernel@vger.kernel.org
Subject: Re: Acer Aspire One now hangs on reboot/shutdown
Date: Thu, 30 Jun 2011 17:18:01 -0700 [thread overview]
Message-ID: <4E0D1239.70205@zytor.com> (raw)
In-Reply-To: <20110630235802.GA18584@srcf.ucam.org>
On 06/30/2011 04:58 PM, Matthew Garrett wrote:
> On Fri, Jul 01, 2011 at 09:10:33AM +1000, Peter Chubb wrote:
>
>> t, p and a all result in a machine hang with the power light on, the
>> backlight off, and no apparent activity anywhere.
>
> Having PCI reboot be broken does make me wonder whether there's
> something about the hardware state that confuses it.
>
It might be a RESET versus INIT difference... if the "PCI reboot" (which
is what "ACPI reboot") points to, it might end up pulling INIT, whereas
the keyboard controller pulls RESET.
RESET would forcibly initialize the hardware state of the machine,
obviously...
-hpa
next prev parent reply other threads:[~2011-07-01 0:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-22 10:38 Acer Aspire One now hangs on reboot/shutdown Peter Chubb
2011-06-22 19:42 ` Matthew Garrett
2011-06-22 19:43 ` Matthew Garrett
2011-06-22 23:50 ` Peter Chubb
2011-06-30 18:29 ` H. Peter Anvin
2011-06-30 23:10 ` Peter Chubb
2011-06-30 23:58 ` Matthew Garrett
2011-07-01 0:18 ` H. Peter Anvin [this message]
2011-07-01 0:22 ` Matthew Garrett
2011-07-01 0:31 ` Peter Chubb
2011-07-01 0:33 ` H. Peter Anvin
2011-07-01 0:35 ` Matthew Garrett
2011-07-01 0:38 ` Matthew Garrett
2011-07-06 0:56 ` Peter Chubb
2011-07-06 4:07 ` [tip:x86/urgent] x86, reboot: Acer Aspire One A110 reboot quirk tip-bot for Peter Chubb
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