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Riet
Asked: 2019-01-22 10:27:56 +0800 CST

升级到 Ubuntu 18.10 后如何恢复 USB 2.0 功能？

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我最近升级到Ubuntu 18.10 (Cosmic Cuttlefish)，现在似乎只有我的 USB 3.0 端口可以工作。我的主板的 USB 2.0 端口在 Windows 中仍然可以正常工作，并且dmesg显示仍然可以检测到这些端口。

这是diff将dmesgUSB 拇指驱动器插入非工作端口之前和之后的情况：

> [ 5272.705639] usb 3-1: new high-speed USB device number 19 using ehci-pci
> [ 5272.833637] usb 3-1: device descriptor read/64, error -32
> [ 5273.069634] usb 3-1: device descriptor read/64, error -32
> [ 5273.305620] usb 3-1: new high-speed USB device number 20 using ehci-pci
> [ 5273.433632] usb 3-1: device descriptor read/64, error -32
> [ 5273.673630] usb 3-1: device descriptor read/64, error -32
> [ 5273.781632] usb usb3-port1: attempt power cycle
> [ 5274.225630] usb 3-1: new high-speed USB device number 21 using ehci-pci
> [ 5274.641614] usb 3-1: device not accepting address 21, error -32
> [ 5274.769604] usb 3-1: new high-speed USB device number 22 using ehci-pci
> [ 5275.185593] usb 3-1: device not accepting address 22, error -32
> [ 5275.185632] usb usb3-port1: unable to enumerate USB device
> [ 5275.573592] usb 7-1: new full-speed USB device number 52 using ohci-pci
> [ 5275.761543] usb 7-1: device descriptor read/64, error -32
> [ 5276.061610] usb 7-1: device descriptor read/64, error -32
> [ 5276.353580] usb 7-1: new full-speed USB device number 53 using ohci-pci
> [ 5276.513580] usb 7-1: device descriptor read/64, error -32
> [ 5276.781579] usb 7-1: device descriptor read/64, error -32
> [ 5276.889555] usb usb7-port1: attempt power cycle
> [ 5277.389577] usb 7-1: new full-speed USB device number 54 using ohci-pci
> [ 5277.809580] usb 7-1: device not accepting address 54, error -32
> [ 5277.993586] usb 7-1: new full-speed USB device number 55 using ohci-pci
> [ 5278.409573] usb 7-1: device not accepting address 55, error -32
> [ 5278.409667] usb usb7-port1: unable to enumerate USB device

将同一个USB 拇指驱动器插入正常工作的 USB 3.0 端口之前和之后diff：dmesg

> [ 5581.365588] usb 8-1.4: new high-speed USB device number 12 using xhci_hcd
> [ 5581.466252] usb 8-1.4: New USB device found, idVendor=0781, idProduct=5575, bcdDevice= 1.26
> [ 5581.466257] usb 8-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> [ 5581.466260] usb 8-1.4: Product: Firebird USB Flash Drive
> [ 5581.466263] usb 8-1.4: Manufacturer: SanDisk
> [ 5581.466265] usb 8-1.4: SerialNumber: 4C532000061107116072
> [ 5581.467387] usb-storage 8-1.4:1.0: USB Mass Storage device detected
> [ 5581.467752] scsi host8: usb-storage 8-1.4:1.0
> [ 5582.470727] scsi 8:0:0:0: Direct-Access     SanDisk  Cruzer Glide     1.26 PQ: 0 ANSI: 5
> [ 5582.471390] sd 8:0:0:0: Attached scsi generic sg3 type 0
> [ 5582.472628] sd 8:0:0:0: [sdd] 62530624 512-byte logical blocks: (32.0 GB/29.8 GiB)
> [ 5582.473669] sd 8:0:0:0: [sdd] Write Protect is off
> [ 5582.473676] sd 8:0:0:0: [sdd] Mode Sense: 43 00 00 00
> [ 5582.474130] sd 8:0:0:0: [sdd] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> [ 5582.482806]  sdd: sdd1
> [ 5582.484907] sd 8:0:0:0: [sdd] Attached SCSI removable disk

这在我的网络摄像头、鼠标和 USB 驱动器中是一致的。我的主板是Gigabyte GA-990FXA-UD3，我在 BIOS 中设置了旧版 USB 设备的解决方法，但似乎没有任何效果。

我该如何取回我的 USB 端口？如果这是一个错误，我将在哪里提交错误报告？

usb xhci-hcd 18.10

1 个回答

  1. Best Answer

    1. 在 BIOS 中，将 IOMMU 设置为“启用”

      这使 USB 2.0 端口工作，但现在 USB 3.0 端口不工作。

    2. 在 BIOS 中，检查 USB 设置。它可能应该设置为“legacy”，但如果它已经设置为这种方式，请尝试其他设置，并查看 USB 3.0 端口是否再次工作。

    3. 在终端...

      • sudo -H gedit /etc/default/grub
      • 输入您的密码

      • 然后找到说：

        GRUB_CMDLINE_LINUX=""

      • 然后把它变成这样：

        GRUB_CMDLINE_LINUX="iommu=soft"

      • 保存文件

      • 然后在终端中运行它...

        sudo update-grub

      • 重启

    资料来源：技嘉 GA-990FXA-UD3 USB 端口不工作

    • 1

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