Re: kern/38683: T61 cannot suspend with recent kernels

["Steven M. Bellovin" <smb%cs.columbia.edu@localhost>]

The following reply was made to PR kern/38683; it has been noted by GNATS.

From: "Steven M. Bellovin" <smb%cs.columbia.edu@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: gnats-admin%NetBSD.org@localhost, "Jared D. McNeill" 
<jmcneill%invisible.ca@localhost>
Subject: Re: kern/38683: T61 cannot suspend with recent kernels
Date: Tue, 9 Sep 2008 23:17:01 -0400

 After conversations with Jared, we've more or less figured out why we
 were seeing different results: we were resuming differently.  I was
 using the Fn key; he was using the power key.
 
 New data; if I suspend with Fn+F4, I can resume with the power button
 but not with the Fn key.  If I suspend by closing the lid, I cannot
 resume by opening the lid.  If I suspend with Fn+F4, I can open the lid
 and then resume with the power button.  I didn't try Fn+F4, lid-close,
 lid-open, Fn, but I'm reasonably confident that that won't work.
 
 Perhaps the Fn key is generating some sort of keyboard or ACPI interrupt
 that needs to be cleared but isn't.  I have no idea how the lid switch
 shows up, or why it should be different than the power button.  I do
 recall some issue last fall -- December? -- where the system wouldn't
 resume at all on lid-open; that has since been fixed.  But might that
 fix offer a clue to what's happening?