更新到 20.04 版后，键盘不再工作。我读了一些其他答案，使用外部键盘，但这正是我正在做的。我尝试使用旧内核启动，但我做不到，因为启动时我按住 SHIFT 按钮，但它无法识别。
电脑信息（获得sudo lshw | grep 产品>文件）
product: System Product Name (SKU)
product: B150I PRO GAMING/AURA
product: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
product: KHX2133C14/16G
product: KHX2133C14/16G
product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Host Bridge/DRAM Registers
product: Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor PCIe Controller (x16)
product: GP102 [GeForce GTX 1080 Ti]
product: GP102 HDMI Audio Controller
product: 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller
product: xHCI Host Controller
product: AX68002
product: USB Optical Mouse
product: Asus Keyboard
product: xHCI Host Controller
product: 100 Series/C230 Series Chipset Family MEI Controller #1
product: Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode]
product: 100 Series/C230 Series Chipset Family PCI Express Root Port #5
product: 100 Series/C230 Series Chipset Family PCI Express Root Port #9
product: B150 Chipset LPC/eSPI Controller
product: 100 Series/C230 Series Chipset Family Power Management Controller
product: 100 Series/C230 Series Chipset Family HD Audio Controller
product: 100 Series/C230 Series Chipset Family SMBus
product: Ethernet Connection (2) I219-V
product: Samsung SSD 850
product: To Be Filled By O.E.M.
lsusb 的输出
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f2:1125 Chicony Electronics Co., Ltd
Bus 001 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
Bus 001 Device 002: ID 0b95:6802 ASIX Electronics Corp. AX68002
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
答案1
我不是专家，但遇到了同样的问题，使用 Tasksel 删除了一个软件包 [BIG NO NO NOO！]，它删除了许多其他软件包并导致所有 USB 端口停止工作。遗憾的是，我不得不重新安装，因为系统严重受损。如果您可以查看已删除的软件包或安装过程删除的软件包，看看是否有任何可疑之处。