Re: cpufreq est and Enhanced Sleep (Cx) States for Intel Core and above

On Sat, Dec 09, 2006 at 07:29:23PM -0500, Adam McDougall wrote:

  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
  _______________________________________________

I am attaching my asl and dsdt acpi dumps incase someone knows for
something to look for as for why it thinks I only have C1, unless 
its related to the speed control problem above.