Date: Sat, 25 Feb 2006 05:16:21 GMT From: Colin Percival <cperciva@FreeBSD.org> To: victor@bsdes.net, cperciva@FreeBSD.org, freebsd-bugs@FreeBSD.org, cperciva@FreeBSD.org Subject: Re: kern/93790: cpufreq missing frequencies Message-ID: <200602250516.k1P5GLUN056765@freefall.freebsd.org>
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Synopsis: cpufreq missing frequencies State-Changed-From-To: open->analyzed State-Changed-By: cperciva State-Changed-When: Sat Feb 25 05:06:32 UTC 2006 State-Changed-Why: The Enhanced SpeedStep driver was written before Intel released mobile processors with a 533MHz bus speed; it is recognizing the processor as having a 15x clock multiplier, and deciding that this means it is a 1.5GHz processor. This means that the Enhanced SpeedStep code has incorrectly recognized the processor and there may be frequencies which the driver is unable to use; but the main effect is simply that the frequencies are printed incorrectly: The frequency 2.0GHz is reported as 1.5GHz, the frequency 800MHz is reported as 600MHz, etc. Until this can be fixed properly, I suggest ignoring the frequency information returned by the driver; if the submitter uses powerd(8) he will find that it operates just as well in spite of the driver being somewhat confused. Responsible-Changed-From-To: freebsd-bugs->cperciva Responsible-Changed-By: cperciva Responsible-Changed-When: Sat Feb 25 05:06:32 UTC 2006 Responsible-Changed-Why: http://www.freebsd.org/cgi/query-pr.cgi?pr=93790
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