Date: Wed, 4 Nov 2009 15:04:43 +1100 (EST) From: Ian Smith <smithi@nimnet.asn.au> To: Yuri <yuri@rawbw.com> Cc: Paul B Mahol <onemda@gmail.com>, freebsd-questions@freebsd.org Subject: Re: Does hybernate/wakeup work? Message-ID: <20091104143039.J35366@sola.nimnet.asn.au> In-Reply-To: <20091104005002.6B49F1065714@hub.freebsd.org> References: <20091104005002.6B49F1065714@hub.freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
In freebsd-questions Digest, Vol 283, Issue 5, Message 13 On Tue, 03 Nov 2009 10:56:24 -0800 Yuri <yuri@rawbw.com> wrote: > Paul B Mahol wrote: > > On 10/23/09, Yuri <yuri@rawbw.com> wrote: > > > >> I tried to make system hybernate with 'acpiconf -s4' on my laptop. > >> It quickly turned off, but when I press the power button it boots like > >> no hybernate and begins to check disks. > >> > >> What can be wrong? > >> > > > > OS S4 is not implemented, but BIOS S4 is possible on some machines ... > > And on 8.0 and 9.0 i386 SMP doesnt resume properly (amd64 works). > 'acpiconf -s4' also brings laptop to unwakeable state. Power button > begins to flash, when I press any button there is some disk activity, > power button light turns on. And nothing happens. 'apm -z' produces > similar result. > > Maybe it's better to ask what works? > Is there any way I can use suspend/sleep mode? Any basic way to make it sleep? As Paul said, hibernation only works if the machine's BIOS supports it (hw.acpi.s4bios = 1) AND you've already prepared a suitable disk area, usually a separate slice (DOS partition) or as a file in a 'doze slice. To make even a vaguely informed guess as to whether hibernation and/or acpiconf -s3 (suspend/resume) might work, we'd need to know: What version of FreeBSD on which architecture? (output of 'uname -a') What make and model of laptop? (someone may know if that one works) Whether it runs a single or multiple CPUs? (see /var/run/dmesg.boot) The output of 'sysctl hw.acpi' ? cheers, Ian
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20091104143039.J35366>