>From the kernel log, beside below errors, there are no errors for usb or keryboard, it also show correctly dectected keyboard for every reboot.
$ grep -i error kern.log | tail -n5 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 4.321273] ERST: Error Record Serialization Table (ERST) support is initialized. Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 21.017745] RAS: Correctable Errors collector initialized. Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 28.579403] calling init_error_injection+0x0/0x6f @ 1 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 28.639458] initcall init_error_injection+0x0/0x6f returned 0 after 160 usecs Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 61.697880] EXT4-fs (nvme0n1p1): re-mounted. Opts: errors=remount-ro $ grep -i keybaord kernel.log|tail -n15 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 14.154902] usb 1-2: Product: USB Multimedia Keyboard Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.585889] input: Lite-On Technology Corp. USB Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:04CA:0027.0001/input/input1 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.642395] hid-generic 0003:04CA:0027.0001: input,hidraw0: USB HID v1.10 Keyboard [Lite-On Technology Corp. USB Multimedia Keyboard] on usb-0000:00:14.0-2/input0 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.642705] input: Lite-On Technology Corp. USB Multimedia Keyboard System Control as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:04CA:0027.0002/input/input2 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.702392] input: Lite-On Technology Corp. USB Multimedia Keyboard Consumer Control as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:04CA:0027.0002/input/input3 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.702495] input: Lite-On Technology Corp. USB Multimedia Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.1/0003:04CA:0027.0002/input/input4 Feb 26 10:04:45 user-QuantaGrid-D52PL-4U kernel: [ 36.702653] hid-generic 0003:04CA:0027.0002: input,hiddev0,hidraw1: USB HID v1.10 Device [Lite-On Technology Corp. USB Multimedia Keyboard] on usb-0000:00:14.0-2/input1 Feb 26 10:05:08 user-QuantaGrid-D52PL-4U kernel: [ 88.768902] usb 1-1: Product: Logitech USB Keyboard Feb 26 10:05:08 user-QuantaGrid-D52PL-4U kernel: [ 88.773167] input: Logitech Logitech USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/0003:046D:C315.0003/input/input5 Feb 26 10:05:08 user-QuantaGrid-D52PL-4U kernel: [ 88.830768] hid-generic 0003:046D:C315.0003: input,hidraw0: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:14.0-1/input0 Feb 26 10:06:26 user-QuantaGrid-D52PL-4U kernel: [ 167.205004] usb 1-2: Product: Logitech USB Keyboard Feb 26 10:06:26 user-QuantaGrid-D52PL-4U kernel: [ 167.209006] input: Logitech Logitech USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:046D:C315.0005/input/input7 Feb 26 10:06:26 user-QuantaGrid-D52PL-4U kernel: [ 167.266672] hid-generic 0003:046D:C315.0005: input,hidraw0: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:14.0-2/input0 Feb 26 10:08:09 user-QuantaGrid-D52PL-4U kernel: [ 270.085139] usb 1-2: Product: Logitech USB Keyboard Feb 26 10:08:09 user-QuantaGrid-D52PL-4U kernel: [ 270.089237] input: Logitech Logitech USB Keyboard as /devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2:1.0/0003:046D:C315.0007/input/input9 Feb 26 10:08:09 user-QuantaGrid-D52PL-4U kernel: [ 270.146678] hid-generic 0003:046D:C315.0007: input,hidraw0: USB HID v1.10 Keyboard [Logitech Logitech USB Keyboard] on usb-0000:00:14.0-2/input0 zlmao@zlmao-T460s:~/tmp/quanta$ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1869138 Title: The keyboard does not have responeded when boot system into Ubuntu 18.04.4 with HWE(Legacy Mode) on Quanta server To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe/+bug/1869138/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
