我在华硕 X83V 笔记本电脑上运行 Xubuntu 12.04，几天前，我的所有 USB 端口都停止响应，鼠标、闪存驱动器或任何 USB 设备都没有响应。当我将手机连接到任何 USB 端口时，它都会充电，但无法连接到我的笔记本电脑。我的鼠标也是如此，它亮了但没有反应。
lsusb无论是否连接任何设备，我的输出都是：
~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
运行后dmesg我得到以下重复输出：
[125505.972198] hub 8-0:1.0: unable to enumerate USB device on port 1
[125507.896116] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125509.816165] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125510.128196] hub 7-0:1.0: unable to enumerate USB device on port 2
[125512.048136] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125513.968164] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125514.152160] hub 8-0:1.0: unable to enumerate USB device on port 1
[125516.076064] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125517.996146] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125518.308109] hub 7-0:1.0: unable to enumerate USB device on port 2
[125520.228063] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125522.148148] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125522.332195] hub 8-0:1.0: unable to enumerate USB device on port 1
[125522.644068] hub 7-0:1.0: unable to enumerate USB device on port 2
[125526.168137] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125526.480203] hub 7-0:1.0: unable to enumerate USB device on port 2
[125526.720130] usb 8-1: new full-speed USB device number 51 using uhci_hcd
[125527.128105] usb 8-1: device not accepting address 51, error -71
[125527.240157] usb 8-1: new full-speed USB device number 52 using uhci_hcd
[125527.648158] usb 8-1: device not accepting address 52, error -71
[125527.760051] usb 8-1: new full-speed USB device number 53 using uhci_hcd
[125527.824202] hub 8-0:1.0: unable to enumerate USB device on port 1
[125529.748164] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125531.668058] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125531.980148] hub 7-0:1.0: unable to enumerate USB device on port 2
[125532.164198] hub 8-0:1.0: unable to enumerate USB device on port 1
[125534.084123] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125536.004170] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125536.316167] hub 7-0:1.0: unable to enumerate USB device on port 2
[125538.240057] hub 2-0:1.0: connect-debounce failed, port 1 disabled
[125540.160128] hub 2-0:1.0: connect-debounce failed, port 2 disabled
[125540.400157] usb 8-1: new full-speed USB device number 55 using uhci_hcd
[125540.808153] usb 8-1: device not accepting address 55, error -71
我正在运行内核 3.2.0-34-generic，并尝试将其更新到 3.6，但无济于事。SOS？