From: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>
To: Linus Torvalds <torvalds@osdl.org>
Cc: "Brown, Len" <len.brown@intel.com>, linux-acpi@vger.kernel.org
Subject: Re: ACPI breakage (Re: 2.6.19-rc6: known regressions (v2))
Date: Mon, 20 Nov 2006 22:31:57 +0300 [thread overview]
Message-ID: <456202AD.9040204@linux.intel.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0611201020320.3692@woody.osdl.org>
Linus Torvalds wrote:
> [ Digression from testing Alexey's patch that makes the Evo work again
> with two separate threads ]
>
> On Mon, 20 Nov 2006, Linus Torvalds wrote:
>
>> Ok, this one works for me too, and looks much simpler.
>>
>
> Hmm. Some more testing shows that fan behaviour after a suspend-to-ram
> event seems broken, but I suspect the breakage isn't new.
>
> It seems that ACPI remembers fan state from before the suspend, and then
> (incorrectly) uses that to decide whether it should turn fans on or off.
> So for example, it seems to remember that the fan was already on, so it
> won't ever turn it on again - even though the suspend will obviously have
> turned off all fans too.
>
>
We have patches in #7122 for similar issue in suspend-to-disk, it may
fix suspend-to-ram too?
It's related to order of ACPI devices resume and _WAK method execution.
Thanks,
Alex.
next prev parent reply other threads:[~2006-11-20 19:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-18 19:01 ACPI breakage (Re: 2.6.19-rc6: known regressions (v2)) Starikovskiy, Alexey Y
2006-11-18 19:05 ` Linus Torvalds
[not found] ` <455FB44C.8050103@linux.intel.com>
[not found] ` <Pine.LNX.4.64.0611182048560.3692@woody.osdl.org>
[not found] ` <456043F7.1030105@linux.intel.com>
[not found] ` <Pine.LNX.4.64.0611201003540.3692@woody.osdl.org>
2006-11-20 18:27 ` Linus Torvalds
2006-11-20 19:31 ` Alexey Starikovskiy [this message]
2006-11-21 3:10 ` Sanjoy Mahajan
2006-11-20 22:13 ` Alexey Starikovskiy
-- strict thread matches above, loose matches on Subject: below --
2006-11-18 16:23 Starikovskiy, Alexey Y
2006-11-18 17:12 ` Linus Torvalds
2006-11-18 19:05 ` David Brownell
2006-11-18 22:09 ` Linus Torvalds
2006-11-18 22:16 ` Adrian Bunk
2006-11-19 4:33 ` David Brownell
2006-11-20 18:46 ` David Brownell
[not found] <Pine.LNX.4.64.0611152008450.3349@woody.osdl.org>
2006-11-17 20:40 ` 2.6.19-rc6: known regressions (v2) Adrian Bunk
2006-11-17 23:58 ` ACPI breakage (Re: 2.6.19-rc6: known regressions (v2)) Linus Torvalds
2006-11-18 1:25 ` Linus Torvalds
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