我在 Dell Inspiron 14R N4110 笔记本上安装了 Xubuntu 14.04 LTS，最近 USB 3.0 端口（蓝色端口）出现间歇性运行。我知道这些端口位于 I/O 板上，其中包含运行正常的音频和以太网端口。
我已经尝试将“usbcore.autosuspend”添加到“/etc/default/grub”，但这不起作用。
有人遇到过类似的问题吗？是否可以通过使用一些配置或更换电路板来解决？
系统盘
Bus 002 Device 005: ID 8087:07d9 Intel Corp.
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 1bcf:2b80 Sunplus Innovation Technology Inc.
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
串行通信
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)
02:00.0 USB controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 04)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 05)
瘦身
WARNING: you should run this program as super-user.
blackice
description: Computer
width: 64 bits
capabilities: vsyscall32
*-core
description: Motherboard
physical id: 0
*-memory
description: System memory
physical id: 0
size: 3845MiB
*-cpu
product: Intel(R) Core(TM) i3-2310M CPU @ 2.10GHz
vendor: Intel Corp.
physical id: 1
bus info: cpu@0
size: 952MHz
capacity: 952MHz
width: 64 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp x86-64 constant_tsc arch_perfmon pebs bts nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx lahf_lm arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid xsaveopt cpufreq
*-pci
description: Host bridge
product: 2nd Generation Core Processor Family DRAM Controller
vendor: Intel Corporation
physical id: 100
bus info: pci@0000:00:00.0
version: 09
width: 32 bits
clock: 33MHz
*-display
description: VGA compatible controller
product: 2nd Generation Core Processor Family Integrated Graphics Controller
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
version: 09
width: 64 bits
clock: 33MHz
capabilities: vga_controller bus_master cap_list rom
configuration: driver=i915 latency=0
resources: irq:28 memory:d0000000-d03fffff memory:c0000000-cfffffff ioport:3000(size=64)
*-communication
description: Communication controller
product: 6 Series/C200 Series Chipset Family MEI Controller #1
vendor: Intel Corporation
physical id: 16
bus info: pci@0000:00:16.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=mei_me latency=0
resources: irq:26 memory:d0705000-d070500f
*-usb:0
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
vendor: Intel Corporation
physical id: 1a
bus info: pci@0000:00:1a.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:16 memory:d070a000-d070a3ff
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 05
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:29 memory:d0700000-d0703fff
*-pci:0
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 1
vendor: Intel Corporation
physical id: 1c
bus info: pci@0000:00:1c.0
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 memory:d0600000-d06fffff
*-network DISABLED
description: Wireless interface
product: Centrino Wireless-N 1030 [Rainbow Peak]
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 34
serial: bc:77:37:4d:97:c0
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=4.2.0-35-generic firmware=18.168.6.1 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
resources: irq:27 memory:d0600000-d0601fff
*-pci:1
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 3
vendor: Intel Corporation
physical id: 1c.2
bus info: pci@0000:00:1c.2
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:18 memory:d0500000-d05fffff
*-usb UNCLAIMED
description: USB controller
product: uPD720200 USB 3.0 Host Controller
vendor: NEC Corporation
physical id: 0
bus info: pci@0000:02:00.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: xhci cap_list
configuration: latency=0
resources: memory:d0500000-d0501fff
*-pci:2
description: PCI bridge
product: 6 Series/C200 Series Chipset Family PCI Express Root Port 5
vendor: Intel Corporation
physical id: 1c.4
bus info: pci@0000:00:1c.4
version: b5
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master cap_list
configuration: driver=pcieport
resources: irq:16 ioport:2000(size=4096) ioport:d0400000(size=1048576)
*-network
description: Ethernet interface
product: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 05
serial: 14:fe:b5:a6:2d:78
size: 100Mbit/s
capacity: 100Mbit/s
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8105e-1.fw ip=192.168.0.107 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
resources: irq:25 ioport:2000(size=256) memory:d0404000-d0404fff memory:d0400000-d0403fff
*-usb:1
description: USB controller
product: 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
vendor: Intel Corporation
physical id: 1d
bus info: pci@0000:00:1d.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: ehci bus_master cap_list
configuration: driver=ehci-pci latency=0
resources: irq:23 memory:d0709000-d07093ff
*-isa
description: ISA bridge
product: HM67 Express Chipset Family LPC Controller
vendor: Intel Corporation
physical id: 1f
bus info: pci@0000:00:1f.0
version: 05
width: 32 bits
clock: 33MHz
capabilities: isa bus_master cap_list
configuration: driver=lpc_ich latency=0
resources: irq:0
*-storage
description: SATA controller
product: 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
vendor: Intel Corporation
physical id: 1f.2
bus info: pci@0000:00:1f.2
version: 05
width: 32 bits
clock: 66MHz
capabilities: storage ahci_1.0 bus_master cap_list
configuration: driver=ahci latency=0
resources: irq:24 ioport:3088(size=8) ioport:3094(size=4) ioport:3080(size=8) ioport:3090(size=4) ioport:3060(size=32) memory:d0708000-d07087ff
*-serial UNCLAIMED
description: SMBus
product: 6 Series/C200 Series Chipset Family SMBus Controller
vendor: Intel Corporation
physical id: 1f.3
bus info: pci@0000:00:1f.3
version: 05
width: 64 bits
clock: 33MHz
configuration: latency=0
resources: memory:d0704000-d07040ff ioport:efa0(size=32)
*-network
description: Ethernet interface
physical id: 1
logical name: wmx0
serial: 64:d4:da:50:85:3a
capabilities: ethernet physical
configuration: driver=i2400m_usb firmware=i6050-fw-usb-1.5.sbcf link=no
答案1
阿德里亚诺，
从lsusb您发布的输出来看，Linux 端似乎没有将您的 USB 集线器识别为两个不同的设备。它没有同时显示 USB 2.0 集线器和 USB 3.0 集线器，而是只显示两次相同的 USB 2.0 集线器（它们具有相同的 ID）。
例如，在我的系统上lsusb出现以下内容：
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
...
请注意，有 2.0 和 3.0 集线器，它们都有唯一的 ID。我的建议是运行sudo apt-get update && sudo apt-get upgrade以使您的系统保持最新状态。如果这不起作用，请检查计算机的 BIOS 设置，看看是否XHCI_Hand_off已启用。否则，去挖掘这里 兼容的驱动程序。
祝你好运！