Re: cpufreq probs dual core intel

Ok, a little more info...

plugged in

leroy# sysctl hw.acpi.acline
hw.acpi.acline: 1

unplugged
leroy# sysctl hw.acpi.acline
hw.acpi.acline: 0

and from /var/log/messages
Jun 27 07:18:46 leroy power_profile: changed to 'economy'
Jun 27 07:18:57 leroy power_profile: changed to 'performance'

When unplugged the screen dims, the machine seems to slow down, yet heres
the problem...
plugged in

leroy# sysctl dev.cpu.0.freq
dev.cpu.0.freq: 2000

unplugged

leroy# sysctl dev.cpu.0.freq
dev.cpu.0.freq: 2000

I can change the freq using sysctl but it doesn't stick, no crash or
anything though.

Whats odd to me is the temp the cpu is running at.
unplugged
dev.cpu.0.temperature: 54
dev.cpu.1.temperature: 55
plugged in
dev.cpu.0.temperature: 61
dev.cpu.1.temperature: 62

Everything seems to be working as it should, just that pesky cpu freq

Oh by the way, the laptop is a Dell Latitude D820, and I did find out after
testing acpi sleep while X/gnome is running it works! And another side
note... with FreeBSD 7.2 I get approx 2 hours battery life using wifi,
windows gives 1.5 hrs, OpenSolaris 1 hour, have not left the laptop
unplugged with current long enough to test.





On Fri, Jun 26, 2009 at 9:09 PM, Kevin Oberman <oberman_at_es.net> wrote:

> > Date: Fri, 26 Jun 2009 19:24:52 -0700
> > From: Ron Freidel <rfreidel_at_gmail.com>
> > Sender: owner-freebsd-current_at_freebsd.org
> >
> > Hi all,
> >
> > I suppose I should state I am only posting after lots of googling.
> >
> > I upgraded to current from 7.2, I just couldn't wait too see if my laptop
> > would acpi sleep, it seems to just fine by the way, not well tested yet
> > though.
> >
> > My prob is with cpufreq, it seems to be locked at max speed, nothing I do
> > seems to change the freq it is running at.
> >
> > CPU: Intel(R) Core(TM)2 CPU         T7200  _at_ 2.00GHz (1997.34-MHz
> K8-class
> > CPU)
> >
> > leroy# dmesg | grep cpu
> >  cpu0 (BSP): APIC ID:  0
> >  cpu1 (AP): APIC ID:  1
> > cpu0: <ACPI CPU> on acpi0
> > coretemp0: <CPU On-Die Thermal Sensors> on cpu0
> > est0: <Enhanced SpeedStep Frequency Control> on cpu0
> > p4tcc0: <CPU Frequency Thermal Control> on cpu0
> > cpu1: <ACPI CPU> on acpi0
> > coretemp1: <CPU On-Die Thermal Sensors> on cpu1
> > est1: <Enhanced SpeedStep Frequency Control> on cpu1
> > p4tcc1: <CPU Frequency Thermal Control> on cpu1
> >
> > It looks to this feeble mind like it should be working.
> > Where else do I look?
> >
> > leroy# ps ax | grep powerd
> >  1164  ??  Ss     0:00.97 /usr/sbin/powerd -a adaptive -b adaptive
> >
> > Hope this is enough info...
>
> Not quite. The output of 'sysctl hw.acpi.acline' (on battery and on AC
> power) and 'sysctl dev.apu.0' would help. Running powerd with the '-v'
> option might provide a clue, too.
>
> Everything you sent looks pretty normal, but it's not enough to tell much.
> --
> R. Kevin Oberman, Network Engineer
> Energy Sciences Network (ESnet)
> Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
> E-mail: oberman_at_es.net                  Phone: +1 510 486-8634
> Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751
>



-- 
Ron