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Re: port-i386/46763: Standby on IBM Thinkpad X41 does not work anymore

The following reply was made to PR port-i386/46763; it has been noted by GNATS.

From: Moritz Wilhelmy <>
Subject: Re: port-i386/46763: Standby on IBM Thinkpad X41 does not work
Date: Fri, 3 Aug 2012 03:41:46 +0200

 On Thu, Aug 02, 2012 at 11:25:02 +0000, Jukka Ruohonen wrote:
 >  On Thu, Aug 02, 2012 at 11:05:03AM +0000, Moritz Wilhelmy wrote:
 >  >  It used to work (using zzz(8)), both from within X and without.
 >  Yes but the zzz(8) is kind of legacy command (involves also more untested
 >  code).
 I like zzz(8) because the name is so short and convenient. Given that
 apm is mostly deprecated, wouldn't it be possible to switch zzz over to
 write that sysctl value instead?
 >  >  Mind you, suspension doesn't really work. I'm not trying to get it to
 >  >  wake up again, it doesn't even complete the suspension. The screen
 >  >  doesn't blank and it doesn't react to keyboard or pressing the power
 >  >  button for <5s.
 >  This sounds like a panic somewhere during the suspend sequence. If you don't
 >  have remote debugging capabilities, it could be hard to catch that though.
 >  I'd personally try to disable as many devices from userconf(4) and try
 >  again. If it works, it is a driver-problem.
 Alright, I tried disabling whatever I could think of, in various
 combinations. So far, it didn't help. I see a message about 
 "Syncing disks" and a number.
 I tried disabling audio, video, bluetooth, sdhc/sdmmc, usb etc., but
 nothing so far helped. Why do I need remote debugging capabilities and
 how do I do that? Via a serial line? Maybe the machine has a serial
 connector on the inside...
 Any other ideas? If you were me, and looking at this dmesg, what would
 you disable first? Are any of the drivers in the dmesg known to be
 substandard quality or known to cause breakage, or have they recently
 (i.e. between 5.1 and 5.99.5x) undergone changes?
 I might be overlooking things.
 Best regards,

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