Unfortunately, I must have a very cheap (in the worst sense) laptop... My
BIOS (Phoenix R0100J4) doesn't allow me to control anything except boot
order and power-on passwords. It doesn't even mention SpeedStep.
Here's psrinfo output:
# psrinfo -pv
The physical processor has 2 virtual processors (0 1)
x86 (GenuineIntel 6F2 family 6 model 15 step 2 clock 1667 MHz)
Intel(r) Core(tm)2 CPU T5500 @ 1.66GHz
#
-- Douglas
On Wed, Feb 4, 2009 at 1:18 AM, Li, Aubrey <aubrey.li at intel.com> wrote:
> 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:d3atiq at 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> 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
>>> >@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
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> pm-discuss mailing list
>>> pm-discuss at opensolaris.org
>>> http://mail.opensolaris.org/mailman/listinfo/pm-discuss
>>>
>>>
>>
>>
>
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