Date: Sat, 19 Feb 2005 10:50:54 -0800 From: Nate Lawson <nate@root.org> To: Morten Rodal <morten@rodal.no> Cc: current@freebsd.org Subject: Re: HEADSUP: cpufreq import complete, acpi_throttling changed Message-ID: <42178A8E.1060305@root.org> In-Reply-To: <200502191911.36228.morten@rodal.no> References: <42068A5C.1030300@root.org> <200502191911.36228.morten@rodal.no>
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Morten Rodal wrote: > On Sunday 06 February 2005 22:21, Nate Lawson wrote: > >>If you have throttling, please test the new configuration to be sure it >>still works as before. Final upcoming work will be manpage support and >>bugfixing as necessary. >> > > > Throttling used to work on my Dell Inspiron 8200, but with the new > cpufreq/acpi_perf I only get errors when trying to set a new cpu > frequency, like this: > > # sysctl dev.cpu.0.freq=1200 > acpi_perf0: Px transition to 1200 failed > acpi_perf0: set freq failed, err 6 > > Regardless of what value I use, it either says 'Px transition to 1200 > failed' or 'Px transition to 1700 failed.' > > Here's more info from various sysctl's: > > # sysctl hw.acpi.cpu > hw.acpi.cpu.cx_supported: C1/0 C2/50 > hw.acpi.cpu.cx_lowest: C2 > hw.acpi.cpu.cx_usage: 0.00% 100.00% > > # sysctl dev.cpu > dev.cpu.0.%desc: ACPI CPU (2 Cx states) > dev.cpu.0.%driver: cpu > dev.cpu.0.%location: handle=\_PR_.CPU0 > dev.cpu.0.%pnpinfo: _HID=none _UID=0 > dev.cpu.0.%parent: acpi0 > dev.cpu.0.freq: 1700 > dev.cpu.0.freq_levels: 1700/0 1487/0 1275/0 1200/0 1062/0 900/0 850/0 > 750/0 637/0 600/0 450/0 425/0 300/0 212/0 150/0 > > If I remember correctly the old interface said something about 8 > throttling states ranging from 12.X% to 100%, but I seem to have many > more freq_levels now? Is this a -current as of today? If not, please cvsup and test again. -- Nate
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