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    • 为什么我的usb2.0不正常，usb3.0就可以？
    Experiences and Insight 348 views · 4 replies ·
    Tofloor
    poster avatar
    lvhui985119
    deepin
    2019-09-23 18:00
    Author
    我的电脑amd955 技嘉970a-ds3p，安装deepin最新版无法使用usb2.0，安装的时候键盘鼠标都在usb2.0上没有反应，然后换到usb3.0上就完成安装了。但是发现设备插在usb2.0接口都无法识别和使用，usb3.0正常。安装时候bois可以正常识别usb2.0的U盘，排除设备故障和硬件故障！百度N多方法都无法正常使用usb2.0，不知道什么原因，求帮助或者告知解决方法！
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    lvhui985119
    deepin
    2019-09-23 18:01
    #1
    谁有同样的问题，帮忙解答一下！
    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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 008 Device 005: ID 2516:0015  
    Bus 008 Device 004: ID 04f9:006d Brother Industries, Ltd
    Bus 008 Device 003: ID 046d:c246 Logitech, Inc. Gaming Mouse G300
    Bus 008 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
    Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub


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    lvhui985119
    deepin
    2019-09-23 18:08
    #2
    Device         Start       End   Sectors  Size Type
    /dev/sda1       4096    204799    200704   98M EFI System
    /dev/sda2     204800    466943    262144  128M Microsoft reserved
    /dev/sda3     471040 168247295 167776256   80G Microsoft basic data
    /dev/sda4  168247296 329732095 161484800   77G Microsoft basic data
    /dev/sda5  329732096 463974734 134242639   64G Microsoft basic data
    qizhuqulvxing@qizhuqulvxing-PC:~$ sudo fdisk -l
    Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: gpt
    Disk identifier: 7FEF14A0-5FC2-4C66-A812-F2CE12EF1CBB

    Device         Start       End   Sectors  Size Type
    /dev/sda1       4096    204799    200704   98M EFI System
    /dev/sda2     204800    466943    262144  128M Microsoft reserved
    /dev/sda3     471040 168247295 167776256   80G Microsoft basic data
    /dev/sda4  168247296 329732095 161484800   77G Microsoft basic data
    /dev/sda5  329732096 463974734 134242639   64G Microsoft basic data
    qizhuqulvxing@qizhuqulvxing-PC:~$
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    lvhui985119
    deepin
    2019-09-23 18:11
    #3
    本帖最后由 lvhui985119 于 2019-9-23 10:15 编辑

    这个是插在usb3.0的U盘信息！
    Device         Start       End   Sectors  Size Type
    /dev/sda1       4096    204799    200704   98M EFI System
    /dev/sda2     204800    466943    262144  128M Microsoft reserved
    /dev/sda3     471040 168247295 167776256   80G Microsoft basic data
    /dev/sda4  168247296 329732095 161484800   77G Microsoft basic data
    /dev/sda5  329732096 463974734 134242639   64G Microsoft basic data


    Disk /dev/sdb: 14.5 GiB, 15527313408 bytes, 30326784 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: dos
    Disk identifier: 0x00000000

    Device     Boot Start      End  Sectors  Size Id Type
    /dev/sdb1  *    16128 30326783 30310656 14.5G  c W95 FAT32 (LBA)
    qizhuqulvxing@qizhuqulvxing-PC:~$
    usb2.0现在插鼠标键盘都无法使用




    Device         Start       End   Sectors  Size Type
    /dev/sda1       4096    204799    200704   98M EFI System
    /dev/sda2     204800    466943    262144  128M Microsoft reserved
    /dev/sda3     471040 168247295 167776256   80G Microsoft basic data
    /dev/sda4  168247296 329732095 161484800   77G Microsoft basic data
    /dev/sda5  329732096 463974734 134242639   64G Microsoft basic data
    qizhuqulvxing@qizhuqulvxing-PC:~$ sudo fdisk -l
    Disk /dev/sda: 232.9 GiB, 250059350016 bytes, 488397168 sectors
    Units: sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disklabel type: gpt
    Disk identifier: 7FEF14A0-5FC2-4C66-A812-F2CE12EF1CBB

    Device         Start       End   Sectors  Size Type
    /dev/sda1       4096    204799    200704   98M EFI System
    /dev/sda2     204800    466943    262144  128M Microsoft reserved
    /dev/sda3     471040 168247295 167776256   80G Microsoft basic data
    /dev/sda4  168247296 329732095 161484800   77G Microsoft basic data
    /dev/sda5  329732096 463974734 134242639   64G Microsoft basic data
    qizhuqulvxing@qizhuqulvxing-PC:~$

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    lvhui985119
    deepin
    2019-09-25 07:50
    #4
    自己解决了！
    问题解决了，根据这个教程更改grub文件！直接在bois更改无法进入系统！
    https://blog.csdn.net/weixin_33938733/article/details/89774367
    下面是修改配置文件：

    编辑 /etc/default/grub 在 GRUB_CMDLINE_LINUX_DEFAULT 中添加参数
    例如 GRUB_CMDLINE_LINUX_DEFAULT="ro quiet splash vt.handoff=7 iommu=soft"
    保存后执行 sudo update-grub
    找到default文件夹，鼠标右键 以管理员身份打开，找到grub文件打开后将GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"替换成GRUB_CMDLINE_LINUX_DEFAULT="ro quiet splash vt.handoff=7 iommu=soft"然后保存，记得终端输入sudo update-grub
    然后重启就行了。我也不知道为什么这样做，反正现在usb2.0已经正常。
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