Hi Aubrey, Apparently it supports "Enhanced SpeedStep" (as claimed by the manufacturer: http://www.vaio.sony.co.uk/view/ShowProduct.action?product=VGN-N38Z%2FW&productFilters=retired&site=voe_en_GB_cons&pageType=Overview&category=VN+N+Series). Shouldn't that work?
I don't recall exactly from which build on the battery would go away so quicky. I remember that was after ZFS boot (snv_90) and I would say it was in the last few builds, but I cannot recall exactly. Does that help at all? Cheers, Douglas On Tue, Feb 10, 2009 at 1:27 PM, Li, Aubrey <aubrey.li at intel.com> wrote: > Hi Douglas, > > As for cpu power mangement, if your laptop doesn't support Speedstep. > I'm afraid I can't do any further help. Can you confirm that on snv_69 so > that > we can make sure speedstep doesn't have a regression. > > There are still other components on the motherboard, the related experts > here might be able to help. > > Thanks, > -Aubrey > > ------------------------------ > *From:* Douglas Atique [mailto:d3atiq at gmail.com] > *Sent:* Tuesday, February 10, 2009 8:36 PM > *To:* Li, Aubrey > *Cc:* Mark Haywood; pm-discuss at opensolaris.org > > *Subject:* Re: [pm-discuss] Help with battery consumption > > Looks like this last e-mail didn't make it to the list. Did you get it? > -- Douglas > > On Wed, Feb 4, 2009 at 11:59 AM, Douglas Atique <d3atiq at gmail.com> wrote: > >> 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 >>>>> >>>>> >>>> >>>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/pm-discuss/attachments/20090211/8c2544dd/attachment.html>
