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From: Faik Uygur <faik@pardus.org.tr>
To: Robert Hancock <hancockr@shaw.ca>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
	Tejun Heo <htejun@gmail.com>, Jeff Garzik <jeff@garzik.org>
Subject: Re: ahci_softreset prevents acpi_power_off
Date: Sun, 14 Jan 2007 19:59:40 +0200	[thread overview]
Message-ID: <200701141959.40673.faik@pardus.org.tr> (raw)
In-Reply-To: <45A9860D.5080506@shaw.ca>

14 Oca 2007 Paz 03:23 tarihinde, Robert Hancock şunları yazmıştı: 
>> [...]
>> > Since you're getting to this point I think this has to be some kind of 
> BIOS interaction causing this. The only thing that happens after the
> "Entering sleep state" is that the kernel writes to some ACPI registers
> to tell the hardware to power down. I think some laptop BIOSes do things
> on ACPI power down like try to park the drive heads, etc. and maybe this
> change that you found from git bisecting is somehow interfering with it
> doing this?
>
> Might want to check for a BIOS update first of all..

Checked from the Sony support page for the laptop model and seems the BIOS 
version is the latest.

So it is nothing interesting but a broken BIOS.

Regards,
- Faik

  parent reply	other threads:[~2007-01-14 17:59 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <fa.enjQgtLFPdSkeJjKv6eOjULTovQ@ifi.uio.no>
     [not found] ` <fa.1s/e9SHVR6LQC2HgdZRykrqlV5Q@ifi.uio.no>
     [not found]   ` <fa.kpxGqupQMKJxBBFrktFUzuoKc7c@ifi.uio.no>
2007-01-14  1:23     ` Robert Hancock
2007-01-14  3:18       ` Jeff Garzik
2007-01-14 17:50         ` Faik Uygur
2007-01-14 17:59       ` Faik Uygur [this message]
2007-01-14 18:06         ` Arjan van de Ven
2007-01-14 18:58           ` Faik Uygur
2007-01-15  4:02           ` Tejun Heo
2007-01-15 13:44             ` Jeff Garzik
2007-01-15 13:55               ` Tejun Heo
2007-01-11 10:31 Faik Uygur
2007-01-13  1:12 ` Tejun Heo
2007-01-13  5:59   ` Faik Uygur
2007-01-13 12:10   ` Faik Uygur

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