☰

Ubuntu 12.10 正在快速消耗我的电池电量

tag-icon • tag-icon 12.10 power-management battery
Ubuntu 12.10 正在快速消耗我的电池电量

我是 Ubuntu 的新手，也不是开发人员，不懂如何编写代码。几天前我下载了它，但它消耗了我的电池，它几乎持续了一个小时零几分钟，而使用 Windows 可以持续超过 3 个小时。

如何通过简单的步骤解决此问题？

答案1

做好以下几点，你的电池寿命会更长

 sudo apt-get install indicator-cpufreq

将以下脚本放入/etc/pm/power.d/并赋予执行权限

 sudo gedit /etc/pm/power.d/power

复制粘贴

 #!/bin/sh

if on_ac_power; then

 ##### Start AC powered settings #####


 # Disable laptop mode
echo 0 > /proc/sys/vm/laptop_mode

 #NMI watchdog should be turned on
for foo in /proc/sys/kernel/nmi_watchdog;
do echo 1 > $foo;
done

 # Set SATA channel: max performance
for foo in /sys/class/scsi_host/host*/link_power_management_policy;
do echo max_performance > $foo;
done

 # CPU Governor: conservative NOT Performance
 # Laptop get start heating up on Performance
 # You can change the freq with indicator-cpufreq
for foo in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
do echo conservative > $foo;
done 

 # Disable USB autosuspend
for foo in /sys/bus/usb/devices/*/power/level;
do echo on > $foo;
done

 # Disable PCI autosuspend
for foo in /sys/bus/pci/devices/*/power/control;
do echo on > $foo;
done

 # Disable power saving for intel sound
echo 0 > /sys/module/snd_hda_intel/parameters/power_save

 # Disable power saving for Wireless card
iw dev wlan0 set power_save off

 # Disabling auto suspending USB
for i in /sys/bus/usb/devices/*/power/autosuspend;
do echo 2 > $i;
done

 ##### End AC powered settings #####

 else

 ##### Start battery powered settings #####

 # Enable Laptop-Mode disk writing
echo 5 > /proc/sys/vm/laptop_mode

 #NMI watchdog should be turned on
for foo in /proc/sys/kernel/nmi_watchdog;
do echo 0 > $foo;
done

 # Set SATA channel to power saving
for foo in /sys/class/scsi_host/host*/link_power_management_policy;
do echo min_power > $foo;
done

 # Select conservative CPU Governor
for foo in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
do echo conservative > $foo;
done

 # Activate USB autosuspend
 for foo in /sys/bus/usb/devices/*/power/level;
 do echo auto > $foo;
 done

 # Activate PCI autosuspend
for foo in /sys/bus/pci/devices/*/power/control;
do echo auto > $foo;
done

 # Power Saving for INTEL sound 
echo 1 > /sys/module/snd_hda_intel/parameters/power_save

 # Power saving ON for Wireless
iw dev wlan0 set power_save on

 # Auto Suspending USB devices
for i in /sys/bus/usb/devices/*/power/autosuspend;
do echo 1 > $i;
done

 ##### End battery powered settings #####

fi

使其可执行

 sudo chmod +x /etc/pm/power.d/power

请查看以下链接

索尼 VAIO 笔记本电脑电池寿命短的具体问题

如何使 Powertop 更改永久生效？

https://wiki.ubuntu.com/Kernel/PowerManagement/PowerSavingTweaks

相关内容