Date: Thu, 27 Apr 2006 15:18:02 -0500 From: Eric Anderson <anderson@centtech.com> To: Nate Lawson <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: Lock up when going to 'economy mode' (battery) Message-ID: <445126FA.4050700@centtech.com> In-Reply-To: <44511838.8030904@root.org> References: <4451123E.3070105@centtech.com> <44511838.8030904@root.org>
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Nate Lawson wrote: > 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. > Looks like I had cpufreq.ko loaded, which caused the problem. Removing that from loader.conf made my system happy again. Here's another thing I noticed (unrelated to above): I booted with the main battery, and had a dvd drive in the option bay. Unplug the AC, battery remaining time shows about 4 hours. Plug AC back in. Then did: atacontrol detach ata1 and removed the dvd drive. Then, I inserted the secondary battery. I didn't notice anything (no battery charging, no dmesg info, etc). I then unplugged the AC, and the battery remaining time shows '-1'. Hints? Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
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