linux-kernel - Re: [linux-pm] Tyan S2923-E suspend to ram fails to resume

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Date:	Sat, 09 Aug 2008 15:42:22 +0100
From:	Simon Arlott <simon@...e.lp0.eu>
To:	Pavel Machek <pavel@...e.cz>
CC:	linux-pm@...ts.linux-foundation.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [linux-pm] Tyan S2923-E suspend to ram fails to resume

On 08/08/08 12:20, Simon Arlott wrote:
> On Fri, August 8, 2008 08:14, Pavel Machek wrote:
>> On Mon 2008-08-04 22:56:07, Simon Arlott wrote:
>>> My system (Tyan S2923-E, dmesg attached) suspends ok in
>>> all pm_test modes, but it won't resume with pm_test
>>> "none".
>>>
>>> [    6.423515] mem full: hash matches
>>>
>>> When I press the power button, the port 80 display shows:
>>> FF D0 23 01 D0 ... DE
>>> (and again each time I press it)
>>>
>>> If I force it to turn off, then on again:
>>> FF D0 23 01 D0 ... FF D0 23 01 D0 ... (D2?) D3 00 01 D5
>>> D6 <normal boot>
>>>
>>> Any ideas? (onboard SAS is disabled, watchdog is
>>> disabled, everything else is enabled, PCI-E graphics
>>> card)
>>
>> Try verifying if it reaches assembly code under realmode/ ...

I've tried acpi_sleep=s3_beep, and this:

diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S
index 3355973..50e50df 100644
--- a/arch/x86/kernel/acpi/realmode/wakeup.S
+++ b/arch/x86/kernel/acpi/realmode/wakeup.S
@@ -37,6 +37,11 @@ signature:	.long	0x51ee1111
	.code16
wakeup_code:
_start:
+	movb $0xC1, %al
+	outb %al, $0x80
+	cli
+	hlt
+
	cli
	cld


Which doesn't work either.

-- 
Simon Arlott

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