It looks like EIST(speedstep) is not enabled, or it's not supported.
Please check BIOS and give us "psrinfo -vp" report.

-Aubrey

________________________________
From: Douglas Atique [mailto:d3a...@gmail.com]
Sent: Wednesday, February 04, 2009 1:02 AM
To: Mark Haywood
Cc: Li, Aubrey; pm-discuss at opensolaris.org
Subject: Re: [pm-discuss] Help with battery consumption

Looks like it was already enabled...

-- Douglas

#
# Copyright 1996-2002 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#pragma ident    "@(#)power.conf 2.1    02/03/04 SMI"
#
# Power Management Configuration File
#

device-dependency-property removable-media /dev/fb
autopm            default
autoS3            default
cpu-threshold        1s
cpupm  enable
# Auto-Shutdown        Idle(min)    Start/Finish(hh:mm)    Behavior
autoshutdown        30        9:00 9:00        noshutdown
~
~
~
~
~
~
~
"power.conf" 16 lines, 411 characters


On Tue, Feb 3, 2009 at 4:58 PM, Mark Haywood <Mark.Haywood at 
sun.com<mailto:Mark.Haywood at sun.com>> wrote:
Douglas Atique wrote:
I have used this laptop with SXCE since snv_69. I have noticed this high 
battery consumption with more recent builds (say snv_100), but I am not exactly 
sure which one.
I am not sure if cpupm is enabled. I didn't do anything to enable it.
Here is an output of powertop running on my machine.

Look at your /etc/power.conf file and see if you see a line like:

cpupm enable

Also, a line like:

cpu-threshold 1s

would be good. And make sure SpeedStep is enable in your BIOS setup. I assume 
that it is.

Mark


-- Douglas

           OpenSolaris PowerTOP version 1.1

Cn            Avg    residency    P-states (frequencies)
C0 (cpu    running)        (15.8%)    1662 Mhz    100.0%
C1            1.3ms    (84.2%)

Wakeups-from-idle per second: 660.8     interval: 5.1s
no ACPI    power usage estimate available

Top causes for wakeups:
40.0% (264.3)               <kernel> :    genunix`cv_wakeup
15.1% (100.0)               <kernel> :    genunix`clock
13.4% ( 88.4)         <interrupt> :    ath#0
 7.1% (    47.2)            <interrupt> :    i8042#0
 5.7% (    37.5)                  sched :    <cross calls>
 3.9% (    26.0)               <kernel> :    genunix`realitexpire
 1.8% (    11.7)               <kernel> :    
uhci`uhci_handle_root_hub_status_change
 1.5% (    10.1)               <kernel> :    ata`ghd_timeout
 0.7% (     4.9)               <kernel> :    myk`gem_mii_link_watcher
 0.7% (     4.7)               <kernel> :    genunix`lwp_timer_timeout





On Tue, Feb 3, 2009 at 1:09 PM, Li, Aubrey <aubrey.li<http://aubrey.li> 
<http://aubrey.li>@intel.com<http://intel.com> <http://intel.com>> wrote:

   Douglas Atique wrote:

   > Hi,
   >
   > I have a Sony Vaio VGN-N38Z laptop which used to work well for
   > about 2 hours.

   Which build did you use to make your laptop working well for about 2
   hours?

   >However, in the latest SXCE builds (I use
   > snv_105 now) I have noticed that once disconnected from AC
   > power, the battery indicator in the Gnome bar starts to
   > decrease almost like a clock and in about 20 minutes it is
   > already asking me to recharge. I started suspecting that some
   > power management-related change is the cause of this behavior
   > because the laptop has been working warm all the time.
   >
   > Can I do something to diagnose a possible problem? If anyone
   > wants to take a look, I offer my time for testing. Just let me know
   > what I have to do.
   >
   > Cheers,
   > Douglas

   Did you enable cpupm(speedstep)? What does powertop say?

   Thanks,
   -Aubrey


------------------------------------------------------------------------

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