我通常使用 PS/2 键盘，但购买 USB 键盘后，我可以使用。它在 BIOS 中以及我的 Windows 计算机上都可以正常工作，因此我相信这不是硬件问题。
lsusb不显示设备
dmesg说设备已断开连接，但物理上已连接。
[ 267.428057] usb 2-1.2: new low-speed USB device number 5 using ehci-pci
[ 267.555545] usb 2-1.2: New USB device found, idVendor=1017, idProduct=2010
[ 267.555550] usb 2-1.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[ 267.555552] usb 2-1.2: Product: Gaming Keyboard
[ 267.569972] input: Gaming Keyboard as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.0/0003:1017:2010.0006/input/input19
[ 267.624549] hid-generic 0003:1017:2010.0006: input,hidraw5: USB HID v1.10 Keyboard [Gaming Keyboard] on usb-0000:00:1d.0-1.2/input0
[ 268.235649] input: Gaming Keyboard as /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2/2-1.2:1.1/0003:1017:2010.0007/input/input20
[ 268.288697] hid-generic 0003:1017:2010.0007: input,hiddev0,hidraw6: USB HID v1.10 Mouse [Gaming Keyboard] on usb-0000:00:1d.0-1.2/input1
[ 268.288980] usb 2-1.2: USB disconnect, device number 5
有什么建议可以找出这个问题的原因吗？