Date: Tue, 4 May 2004 22:25:08 -0700 (PDT) From: Nate Lawson <nate@root.org> To: christian uhrhan <christian.uhrhan@gmx.de> Cc: freebsd-acpi@freebsd.org Subject: Re: ACPI is not working Message-ID: <20040504222314.O32088@root.org> In-Reply-To: <20040505001052.GA39901@secretcore.dyndns.org> References: <5484.1083702760@www30.gmx.net> <20040504160833.I30235@root.org> <20040505001052.GA39901@secretcore.dyndns.org>
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On Wed, 5 May 2004, christian uhrhan wrote: > Hi, > > > > > I looked at your dmesg and ACPI is working fine. You can get increased > > CPU idle power savings by doing: > > > > sysctl hw.acpi.cpu.cx_lowest=1 > > thx, i'll try it out You can put that in /etc/sysctl.conf if it works ok. Make sure it works before doing that though. It should lower the temps with no real performance hit (unlike throttling). > > The acpi_cpu driver is not detecting that your system supports throttling. > > Please post a link to your full ASL: > > acpidump -t -d > christian.asl > > you can take a look at it at http://ahrlug.dyndns.org/acpi_problem/christian.asl Your system does not support throttling. It has a 0 for duty_width. However, it does support ACPI performance states so once the driver is finished for those, you will be able to step back your clock to save power/heat. That's a different and better mechanism than throttling anyway. -Nate
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