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Date:      Sat, 26 Dec 2009 12:12:13 +0100
From:      Frank Staals <frank@fstaals.net>
To:        Paul B Mahol <onemda@gmail.com>
Cc:        Lars Engels <lars.engels@0x20.net>, freebsd-mobile@freebsd.org
Subject:   Re: wpi and suspend/resume
Message-ID:  <4B35EF8D.5040603@fstaals.net>
In-Reply-To: <3a142e750912240233y1799ba2bw3f58d0bef74495c4@mail.gmail.com>
References:  <4B30FE4E.9050801@fstaals.net>	 <20091223115046.cs98224exsgw00ok@0x20.net>	 <4B32688A.3030602@fstaals.net> <3a142e750912240233y1799ba2bw3f58d0bef74495c4@mail.gmail.com>

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On 12/24/09 11:33, Paul B Mahol wrote:
> <snip>
> This is bug, it doesnt exits nicely if attach fail ...
>
> You could try, when unloading wpi module to unload another pci driver and load
> same one again while using
>
> hw.pci.do_power_nodriver="3"
> hw.pci.do_power_resume="0"
>
> in loader.conf, maybe device doesnt get to D3 state in 'right way'.
>    
I'm not sure I understand what you meant by that.  First I added the 
both hw.pci lines to /boot/loader.conf and rebooted. Then I tried the 
following two scenarios:

1: kldunload if_wpi
2: kldunload snd_hda
3: acpiconf -s3
4: resume
5: kldload snd_hda
6: kldload if_wpi

However when I load if_wpi in step 6 it will not recognize the hardware.

The other scenario:

1: kldunload if_wpi
2: kldunload snd_hda
3: kldload snd_hda
4: acpiconf -s3
5: kldload if_wpi

This scenario again results in a panic when loading if_wpi in step 5. 
When loading if_wpi again the following message popped up in particular:

wpi0: chip is in D3 power mode -- setting to d0

Allthough when I checked the second scenario again without the hw.pci 
lines in /boot/loader.conf the this message also appears when 
re-enabling wpi.

Is one of these scenarios what you had in mind ? Or can/should I try 
something else ?

Thanks for the help so far

-- 

- Frank



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