我的笔记本电脑运行的是 Ubuntu 12.04。最近几天，我遇到了一个奇怪的问题（有些人读完后甚至会说我疯了）。我的笔记本电脑是 Acer Aspire 5755（规格- 万一）
无论是在办公室还是在家，我的笔记本电脑上的 Wi-Fi 始终处于开启状态。在家时，网络连接没有问题。但在办公室，只有插入充电器时才能上网。我测试了几十次，以确保这不是一次性问题。
在家里，无论是否插入充电器，互联网都可以正常工作，因此这似乎不是无线网卡电量不足的问题。这可能是我办公桌上的特定电源开关的问题，但我尝试了办公室中的其他几个开关，问题仍然存在。
任何帮助，将不胜感激。
[更新] 添加了 powertop 命令的 o/p，并选中了设备选项卡。这是从办公室发来的，今天晚些时候我回家后也会从家里上传 o/p。
PowerTOP 1.97 概览 空闲统计 频率统计 设备统计 可调参数
Usage Device name
12.6% CPU use
100.0% Audio codec hwC0D0: Realtek
100.0% Display backlight
100.0% Display backlight
495.2 pkts/s Network interface: eth3 (wl)
100.0% Radio device: wl
100.0% USB device: Samsung Android USB Device (SAMSUNG Electronics Co., Ltd.)
100.0% Radio device: acer-wmi
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4
100.0% USB Device: usb-device-8087-0024
100.0% PCI Device: Broadcom Corporation NetLink BCM57785 Gigabit Ethernet PCIe
100.0% USB device: EHCI Host Controller
100.0% PCI Device: Broadcom Corporation NetXtreme BCM57765 Memory Card Reader
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
100.0% PCI Device: Intel Corporation 2nd Generation Core Processor Family DRAM Controller
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
100.0% PCI Device: Broadcom Corporation BCM43227 802.11b/g/n
100.0% PCI Device: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #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 PCI Express Root Port 1
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
100.0% PCI Device: NEC Corporation uPD720200 USB 3.0 Host Controller
0.0% USB device: EHCI Host Controller
0.0% USB device: xHCI Host Controller
0.0% USB device: xHCI Host Controller
0.0% USB Device: usb-device-8087-0024
0.0% USB device: 1.3M HD WebCam (BRB6G1NM1)
0.0% Audio codec hwC0D3: Intel
0.0% Radio device: acer-wmi
0.0 pkts/s Network interface: eth1 (tg3)