根据此问答,Ubuntu 12.04不再需要笔记本电脑模式工具和powertop,因为内核中现在包括了节能功能。
因此,我决定从笔记本电脑中删除笔记本电脑模式工具,因为这会导致笔记本电脑在使用电池时处于关机状态,并且据说不会对功耗造成任何影响。
但是,当我在删除笔记本电脑模式工具后检查了powertop时,我指出实际上有些“ Tunables”从笔记本电脑模式仍然打开的“好”状态变为移除后的“坏”状态。
Bad VM writeback timeout
Bad Runtime PM for PCI Device Fresco Logic FL1000G USB 3.0 Host Controller
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
Bad Runtime PM for PCI Device Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port
Bad Runtime PM for PCI Device Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
Bad Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
Good Wireless Power Saving for interface wlan0
Good Enable SATA link power management for /dev/sda
Good NMI watchdog should be turned off
Good Enable Audio codec power management
Good Bluetooth device interface status
Good Autosuspend for USB device BT-270 (Broadcom Corp)
Good Autosuspend for USB device USB2.0 UVC 2M WebCam (USB2.0 UVC 2M WebCam)
仍然使用笔记本电脑模式工具时,只有第一个被标记为“不良”。
所以我的实际问题是:
如果这些节电措施已集成到Ubuntu 12.04使用的内核中,为什么powertop会有所作为?
移除笔记本电脑模式工具会改变我的电池寿命吗?
我还安装了木星以延长电池寿命,这也无关紧要吗?
我希望我的解释清楚一些。(请注意,我对Ubuntu和GNU / Linux还是陌生的)
非常感谢。