Date: Thu, 27 Apr 2006 12:15:04 -0700 From: Nate Lawson <nate@root.org> To: Eric Anderson <anderson@centtech.com> Cc: freebsd-acpi@freebsd.org Subject: Re: Lock up when going to 'economy mode' (battery) Message-ID: <44511838.8030904@root.org> In-Reply-To: <4451123E.3070105@centtech.com> References: <4451123E.3070105@centtech.com>
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Eric Anderson wrote: > From single user, this works as expected - unplugging the power adapter > makes the laptop go into low power mode, and everything continues to work. > > However, when in multi-user mode, it locks the machine up, and all I see > is the ACPI messages on the console telling me it went in/out of > economy/performance modes. I can only hard boot the laptop to get it > back working. This is a new Dell Latitude D820 (Core Duo). > > powerd_enable="YES" > > powerd_flags="-a max -b adaptive -p 100 -r 65 -i 90" Try disabling powerd. Then from the command line in single user mode, poke around with dev.cpu.0.freq=XXX. You could disable p4tcc and acpi_throttle to see if that helps (hint.p4tcc.0.disabled="1"). > performance_cx_lowest="C1" > economy_cx_lowest="C1" I see you've disabled the potential Cx interaction. I'll look into that issue soon now that I have a system that exhibits this bug. -- Nate
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