Date: Sat, 9 Dec 2006 19:29:23 -0500 From: Adam McDougall <mcdouga9@egr.msu.edu> To: freebsd-current@freebsd.org Subject: cpufreq est and Enhanced Sleep (Cx) States for Intel Core and above Message-ID: <20061210002923.GO81923@egr.msu.edu>
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src/sys/i386/cpufreq/est.c has many Pentium M cpus but nothing from the Intel Core and Core 2 families that I can see. I tried looking up the values myself, but could not find them in: http://www.intel.com/design/mobile/datashts/314078.htm It seems that even the latest version of the Linux kernel does not list values for at least Yonah (Core 2). Is it a big mystery, or is this data actually available somewhere? I have a Core 2 Duo T7600 in my laptop and est won't touch my cpu because it doesn't recognize it. I did get it to use some other form of speed control by putting hint.acpi_perf.0.disabled="1" in /boot/loader.conf according to another post. Another thing I wish could work is the Enhanced cpu Sleep States; this Dell Latitude D820 laptop only sees C1 although the document above indicates it should probably support 4 unique states. Is there a way I can debug and/or fix this? I can post dumps of the acpi stuff and/or verbose boot logs if it would be helpful. Thanks
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