Date: Mon, 02 Jul 2012 19:38:55 -0700 From: matt <sendtomatt@gmail.com> To: =?ISO-8859-1?Q?Gustau_P=E9rez_i_Querol?= <gperez@entel.upc.edu> Cc: freebsd-acpi@freebsd.org Subject: Re: Unable to resume amd64 machine Message-ID: <4FF25B3F.3040704@gmail.com> In-Reply-To: <4FE99A6A.30809@entel.upc.edu>
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On 06/26/12 04:18, Gustau Pérez i Querol wrote: > > Hi, > > it seems there was some problem when I posted this one. Sorry if it > shows two times in the mailing list. > > I've trying to suspend/resume an amd64 machine. The machine is a > fujitsu S710 laptop running: > > FreeBSD 10.0-CURRENT #4 r237339=e61ad3a-dirty: Sat Jun 23 > 17:12:58 CEST 2012 > > I did the tests in the following conditions: > > - No X loaded. Everything in console. The machine has an Intel video > card, but the i915kms wasn't there. > - When removing modules, I tried in single user mode. > > The behavior is basically the machine seems to suspend fine (I see > the power led blinking) but when resuming it freezes hard. I see the > disk spinning for a while and then it stops. I can't ssh to it, I > can't use the keyboard at all so I can issue no command at all. > > I've tried stripping down the kernel (everything is out except > if_ath, em and usb stack). No pccard, no sdhci, no sound, no cuse4bsd, > no usb hid devices (I'm using uhidd for hid devices), no acpi_video or > acpi_fujitsu there but the same result. > > I tried enabling debug.acpi.resume_beep=1. When doing this, the > laptop beeped like crazy. > > With sysctl debug.acpi.suspend_bounce=1, the suspend put the screen > blank, however the machine stayed alive. > > With acpi.reset_video I got no result. > > I tried using the serial console on the laptop. I saw the suspend > process taking down some usb devices. Resume showed nothing on the > serial console. > > Disabling devices in the BIOS (removing wifi, bluetooth, webcam, etc > ...) didn't bring me further. > > Thanks > > This could be similar to thinkpads, see my response to Honest Qiao's X201... Here's the short version: In single user, set hw.pci.do_power_resume=0 and hw.pci.do_power_suspend=0 Try suspend bounce (and if successful suspend) with suspend beep sysctl on. If that fails (either bounce or full suspend) try just hw.pci.do_power_resume=1 repeat test (bounce then full suspend) If that fails (either bounc or full suspend) try just hw.pci.do_power_suspend=1 repeat test (bounce then full suspend) I recommend testing laptop with SSH or some other screenless way of seeing if it resumed, as onboard graphics can be tricky these days. Matt Matthome | help
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