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未检测到前置 USB 端口

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未检测到前置 USB 端口

我搜索过这个网站，似乎没有太多关于这个问题的答案。在 Windows 10 操作系统上，前置 USB 端口被检测到，但在 Ubuntu 中却没有。有什么帮助吗？

这是我的输出：

Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 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 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 2357:0109  
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 004: ID 3938:1031  
Bus 004 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 004 Device 002: ID 046d:0100 Logitech, Inc. 
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 011 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 010 Device 003: ID 2357:012d  
Bus 010 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 010 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

System:    Kernel: 5.3.0-46-generic x86_64 bits: 64 gcc: 7.5.0
           Desktop: Gnome 3.28.3 (Gtk 3.22.30-1ubuntu1) dm: gdm3
           Distro: Ubuntu 18.04.2 LTS
Machine:   Device: desktop Mobo: MSI model: 970 GAMING (MS-7693) v: 4.0 serial: N/A
           UEFI: American Megatrends v: V22.3 date: 05/12/2015`

答案1

我通过在 GRUB 条目上添加 ioommu=soft 解决了这个问题。

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