O poder ocioso muda depois de reiniciado

Question

Eu tenho esse comportamento estranho que o poder ocioso é alto ou baixo. Por exemplo. às vezes é 20 W e às vezes 10 W. Ele fica lá até ser reiniciado de suspender / rewake.

Todos os parâmetros que conheço, como luz de fundo, velocidade da CPU, wifi, bluetooth, são os mesmos.

Leia a energia usando powertop e cat / sys / devices / platform / smapi / BAT0 / power_now. Eles concordam com o poder.

Estou executando o archbang x64 (arquive com algumas coisas pré-configuradas) em um laptop Lenovo x220.

Algumas informações do powertop

PowerTOP Version    v2.1
Kernel Version  Linux version 3.7.9-1-ARCH (nobody@foutrelis) (gcc version 4.7.2 (GCC) ) #1 SMP PREEMPT Mon Feb 18 02:13:30 EET 2013
System Name LENOVO 4291P36 ThinkPad X220
CPU Information 4x Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
OS Information  Arch Linux

** Informações sobre descarga durante um estado baixo **
Relatório de energia do dispositivo

A bateria reporta uma taxa de descarga de 12,0 W

A energia da linha de base do sistema é estimada em 7,47 W

Power est.  Usage   Device name
4.96 W  100.0%  Radio device: iwlwifi
4.74 W   33.3%  Display backlight
4.74 W   12.5%  Display backlight
21.0 mW  0.0 pkts/s Network interface: wlan0 (iwlwifi)
0 mW     1985 rpm   Laptop fan
0 mW    326.8 pkts/s    Network interface: wwan0 (cdc_ncm)
0 mW    275.8 ops/s GPU
0 mW    100.0%  USB device: usb-device-8087-0024
0 mW    100.0%  USB device: EHCI Host Controller
0 mW    100.0%  USB device: F5521gw (Lenovo)
0 mW    100.0%  Radio device: thinkpad_acpi
0 mW     10.9%  CPU use
0 mW     0.0%   Audio codec hwC0D0: Conexant
0 mW     0.0%   Thinkpad light
0 mW     0.0%   USB device: EHCI Host Controller
0 mW     0.0%   USB device: usb-device-8087-0024
0 mW     0.0%   Audio codec hwC0D3: Intel
100.0%  PCI Device: Ricoh Co Ltd MMC/SD Host Controller
100.0%  PCI Device: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak]
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
100.0%  PCI Device: Intel Corporation QM67 Express Chipset Family LPC Controller
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
100.0%  PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
100.0%  PCI Device: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
0.0%    PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1
0.0%    PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
0.0%    PCI Device: Intel Corporation 2nd Generation Core Processor Family DRAM Controller

E a pergunta: Como faço para que ele fique no modo baixo toda vez?

    

Answer 1

Tente

\>rfkill list
0: tpacpi_bluetooth_sw: Bluetooth
        Soft blocked: yes
        Hard blocked: no
1: tpacpi_wwan_sw: Wireless WAN
        Soft blocked: yes
        Hard blocked: no
10: phy1: Wireless LAN
        Soft blocked: no
        Hard blocked: no

Em seguida, mude o dispositivo Radio WAN com:

rfkill block 1