linux-kernel - Re: suspend/hibernation regression between 2.6.19 and 2.6.20 w/ Thinkpad T41

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 5 Aug 2007 17:11:46 -0300
From:	Henrique de Moraes Holschuh <hmh@....eng.br>
To:	Toralf Förster <toralf.foerster@....de>
Cc:	ibm-acpi@....eng.br, ibm-acpi-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: suspend/hibernation regression between 2.6.19 and 2.6.20 w/
	Thinkpad T41

On Sun, 05 Aug 2007, Toralf Förster wrote:
> It is a small - but IMHO nagging - regression between these 2 kernel versions.
> 
> To make a "software suspend" at this notebook ("suspend to RAM") you have
> to press <Fn>+ <F4>. Pressing the <Fn>-Key after that wakes up the notenbook.
> 
> If you hibernated the system ("suspend to disc"), you have to press the power
> button to wake up the notebook.
> 
> But now there is an issue if you want to wake up this notebook, after it was
> suspended with <Fn>+<F4> again. It is now not possible to wake it up with <Fn>,
> instead you have to press the power button as you would have it to do after a
> hibernation.
> 
> This issue occures in the current 2.6.21 kernel too.
> (all tested at a stable Gentoo system - also with git-kernel-versions).

I am at a loss of how thinkpad-acpi could in any way cause, or change, the
firmware wake-up notification behaviour.

That said, my T43 with 2.6.21 and latest-of-the-latest thinkpad-acpi wakes
up from S3 just fine by pressing the "Fn" key and holding it down for ~2s.
I didn't know it did that :-)  I always use the power button.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/