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Date: Thu, 01 Dec 2011 20:31:03 +0530
From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
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To: Oliver Neukum <oneukum@suse.de>
CC: Steven Rostedt <rostedt@goodmis.org>, "Rafael J. Wysocki" <rjw@sisk.pl>,
        linux-pm@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
        Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
        Greg Kroah-Hartman <gregkh@suse.de>,
        Alan Stern <stern@rowland.harvard.edu>
Subject: Re: Suspend and resume on ASUS Laptops
References: <1322712689.30977.11.camel@frodo> <201112011248.44449.oneukum@suse.de> <1322749734.30977.16.camel@frodo> <201112011538.06912.oneukum@suse.de>
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On 12/01/2011 08:08 PM, Oliver Neukum wrote:

> Am Donnerstag, 1. Dezember 2011, 15:28:54 schrieb Steven Rostedt:
>> On Thu, 2011-12-01 at 12:48 +0100, Oliver Neukum wrote:
>>
>>> What errors are seen in the kernel log?
>>
>> Without the script, I don't see any errors. Is there some debug thing
>> you want me to do? There's no error messages but the system just hangs
>> on suspend. It never makes it to the suspend state. The only way out of
>> it is to press and hold the power button for 10 seconds to force a hard
>> reboot.
> 
> I see. I thought the system just refuses to enter S3/4. That it hangs was
> new to me. Has there been a mail thread about this problem already?
> If not, what is the last thing you see if you go to S3 after you booted
> with no_console_suspend on the kernel command line?
> 


Hi Steven,
Since without the script your system refuses to suspend, you could also use the
'pm_test' framework (documented in Documentation/power/basic-pm-debugging.txt)
to find out more about the failing step when suspend is attempted without using
the script. Trying 'echo devices > /sys/power/pm_test' might be helpful in your
case.

Regards,
Srivatsa S. Bhat
IBM Linux Technology Center