Cannot suspend system.

[Ian Smith]

On Thu, 11 Mar 2010, Tim Matthews wrote:
 > On Tue, Mar 2, 2010 at 12:00 PM, Jung-uk Kim <jkim at freebsd.org> wrote:
 > 
 > >
 > > The error message says one of the device drivers failed to suspend
 > > properly.  When that happens, acpi(4) refuses to suspend for "better
 > > safer than sorry" reason.  You can try one thing, though.  Remove all
 > > non-essential device drivers from kernel configuration and build a
 > > bare minimum kernel, which is just enough to boot your machine.
 > >
 > 
 > I have removed just about everything and made sure there wasn't anything
 > lying around in loader.conf too.  The suspend still fails.
 > 
 > Is there anything else that can be done?

You could try turning on hw.acpi.verbose in sysctl.conf (I noticed it 
was off), booting with verbose messages on, then looking at the messages 
before, during and after attempting to suspend.  This may show something 
about some particular device that won't or can't suspend, that you could 
then show us.

/var/run/dmesg.boot (verbose) may also contain some related clues.

cheers, Ian