Date: Thu, 3 Nov 2011 15:54:59 +1100 (EST) From: Ian Smith <smithi@nimnet.asn.au> To: Sebastian Chmielewski <chmiels@o2.pl> Cc: freebsd-acpi@freebsd.org, Gavin Atkinson <gavin@freebsd.org> Subject: Re: Suspend and resume on Dell E6520 Message-ID: <20111103151806.D29579@sola.nimnet.asn.au> In-Reply-To: <20111101163933.2b367e9f@o2.pl> References: <20111024184736.077bfc1b@o2.pl> <1320155632.68325.15.camel@buffy.york.ac.uk> <20111101163933.2b367e9f@o2.pl>
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On Tue, 1 Nov 2011, Sebastian Chmielewski wrote: > On Tue, 01 Nov 2011 13:53:52 +0000 > Gavin Atkinson <gavin@FreeBSD.org> wrote: > > > Can I confirm that you have tried suspend/resume without any of the USB > > code loaded? > > > > If you set sysctl debug.acpi.resume_beep=1 before suspend, do you hear a > > beep on resume? > > > > > I have > kldunload {uhci,ohci,ehci} in rc.suspend. > kldload {uhci,ohci,ehci} in rc.resume. Just checking: this is with a kernel built without uhci, ohci and ehci? > There is no beep on resume but beep maybe simulated through soudcard? (It's a > laptop). The beep is generated by programming the good old-fashioned timer chip; if the laptop normally beeps on boot or error it should beep on resume. With this, my Thinkpad T23 (piercingly) beeped for a full 60 seconds on resume for months, until learning it was (here) uhci causing that hang. (I've been vaguely hoping this might be fixed before 9.0-RELEASE ..) > Screen is blank and nothing happens. Firewire is not functional too much > (which I've reported). > Same symptoms on 8.2-STABLE and 9.0-RC1. You could try setting sysctl hw.acpi.verbose=1 from /etc/sysctl.conf and then booting with verbose messages, which logs a lot more detail around suspend and resume, which may provide clues (though some of that logging obviously occurs after resume succeeds). Worth also maybe trying sysctl hw.syscons.sc_no_suspend_vtswitch=1 which has helped on some laptops. cheers, Ian
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