sony-vaio-z-series team mailing list archive

["K. Posern" <quickhelp@xxxxxxxxx>]

Hi Norbert,

How do you get below 10W??
I am at around 12W with Lowest brightness, hw wifi switch off, no nvidia
in lspci.

What could be the reason for these 2-3W more on my side?

Maybe:
What is this "[acpi] <interrupt>" about?

Is there a way to powersave on the hda_intel or the i915 (beside what
powertop suggests + lowest brightness)?

-----------------------------------------------------------------
rfkill list
0: sony-wifi: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
1: sony-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: yes

-----------------------------------------------------------------
PowerTOP version 1.13      (C) 2007 Intel Corporation
Cn                Avg residency       P-states (frequencies)
C0 (cpu running)        ( 0.5%)       Turbo Mode     0.0%
polling           0.0ms ( 0.0%)         2.67 Ghz     0.0%
C1 mwait          2.2ms ( 0.1%)         2.54 Ghz     0.0%
C2 mwait          0.5ms ( 0.3%)         2.40 Ghz     0.0%
C3 mwait         28.0ms (99.1%)         1199 Mhz   100.0%

Wakeups-from-idle per second : 41.6     interval: 15.0s




Power usage (ACPI estimate): 11.4W (5.0 hours)

Top causes for wakeups:
  26.0% ( 10.7)   [acpi] <interrupt>
  19.8% (  8.1)   thunderbird-bin
  10.2% (  4.2)   [i915, hda_intel] <interrupt>
   8.9% (  3.7)   X
   8.9% (  3.7)   lxpanel
   4.9% (  2.0)   [kernel core] clocksource_watchdog (clocksource_watchdog)
   3.7% (  1.5)   soffice.bin
   2.3% (  0.9)   [ahci] <interrupt>
   2.0% (  0.8)   [eth0] <interrupt>
   2.0% (  0.8)   [TLB shootdowns] <kernel IPI>
   1.1% (  0.5)   firefox
   1.1% (  0.5)   events/2
   0.8% (  0.3)   flush-9:126
   0.8% (  0.3)   gpg-agent
   0.8% (  0.3)   screen
   0.8% (  0.3)   pidgin
   0.7% (  0.3)   pcmanfm
   0.7% (  0.3)   menu-cached
   0.7% (  0.3)   cifsd
   0.7% (  0.3)   jbd2/md126p10-8
   0.5% (  0.2)   xscreensaver
   0.5% (  0.2)   init
   0.5% (  0.2)   compiz
   0.5% (  0.2)   [kernel core] dev_watchdog (dev_watchdog)
   0.3% (  0.1)   [Rescheduling interrupts] <kernel IPI>
   0.2% (  0.1)   bdi-default
   0.2% (  0.1)   urxvt
   0.2% (  0.1)   events/0
   0.2% (  0.1)   gconfd-2
   0.2% (  0.1)   [kernel core] run_timer_softirq (sync_supers_timer_fn)


Thanks a lot!

Knuth

On 09/25/2010 07:00 AM, Norbert Preining wrote:
>>  systems consumes about 14W
> 
> lowest brightness, cpufreq down, send the output of powertop, I come down to 10 and less W
> 
> 
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