Internal/USB keyboard not detected ONLY during GRUB screen, Linux Mint 20.x

[swnw]

Hi,

I am struggling with the same problem without results. My computer is the Huawei Mate Book Pro laptop. So far I reinstalled LinuxMint 20.04 and Elementery OS 6 and keyboad still doesn't respond. I can't move between menu. Grub 2.04 started with default System highlighted (LinuxMint for examole) and run it after 10 sek.
But yesterday I got idea I have old PC with Microsoft radio keyboard, so connected it to the laptop and the Grub revive and with this keyboard works as it should . So I have a plan to buy small only numeric radio keyboard and use it when it's necessary.
But I'm still not happy with solution.

swnw

[acerimusdux]

This isn't uncommon for some things, my bluetooth keyboard won't be available until after boot. And my usb mouse won't but a usb keyboard will. I think there may be problems even with some USB keyboards. But I think it's surprising even a laptop keyboard isn't recognized. After working during the bios boot. My first thought is, when you boot up, check in System Settings for the "driver manager". I suspect there still could be a hardware driver that may need to be installed.

Maybe also post the output of

Code: Select all

inxi -Fxxxrz

so we can see what the hardware is, and what drivers are being used.

Since it works elsewhere though, I guess it's also possible that there's a grub module that might need to be loaded, or configuration setting changed.

[swnw]

Hi it's my inxi:

System:
Kernel: 5.4.0-91-generic x86_64 bits: 64 compiler: gcc v: 9.3.0
Desktop: Cinnamon 5.0.7 wm: muffin 5.0.2 dm: LightDM 1.30.0
Distro: Linux Mint 20.2 Uma base: Ubuntu 20.04 focal
Machine:
Type: Laptop System: HUAWEI product: MACH-WX9 v: M11 serial: <filter>
Mobo: HUAWEI model: MACH-WX9-PCB v: M11 serial: <filter> UEFI: HUAWEI
v: 1.37 date: 05/12/2021
Battery:
ID-1: BAT0 charge: 51.4 Wh condition: 51.4/56.3 Wh (91%) volts: 8.1/7.6
model: DYNAPACK HB4593R1ECW-22T0 type: Li-ion serial: <filter>
status: Full cycles: 176
CPU:
Topology: Quad Core model: Intel Core i5-8250U bits: 64 type: MT MCP
arch: Kaby Lake rev: A L2 cache: 6144 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
bogomips: 28800
Speed: 792 MHz min/max: 400/3400 MHz Core speeds (MHz): 1: 785 2: 795
3: 800 4: 800 5: 800 6: 763 7: 801 8: 800
Graphics:
Device-1: Intel UHD Graphics 620 vendor: Huawei driver: i915 v: kernel
bus ID: 00:02.0 chip ID: 8086:5917
Display: x11 server: X.Org 1.20.13 driver: modesetting
unloaded: fbdev,vesa resolution: 3000x2000~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 620 (KBL GT2) v: 4.6 Mesa 21.0.3
direct render: Yes
Audio:
Device-1: Intel Sunrise Point-LP HD Audio vendor: Huawei
driver: snd_hda_intel v: kernel bus ID: 00:1f.3 chip ID: 8086:9d71
Sound Server: ALSA v: k5.4.0-91-generic
Network:
Device-1: Intel Wireless 8265 / 8275 vendor: Huawei driver: iwlwifi
v: kernel port: 3040 bus ID: 3b:00.0 chip ID: 8086:24fd
IF: wlp59s0 state: up mac: <filter>
Drives:
Local Storage: total: 704.24 GiB used: 245.85 GiB (34.9%)
ID-1: /dev/nvme0n1 vendor: Toshiba model: N/A size: 238.47 GiB
speed: 31.6 Gb/s lanes: 4 serial: <filter> rev: AAXA4103 scheme: GPT
ID-2: /dev/sda type: USB vendor: Samsung model: PSSD T7 size: 465.76 GiB
serial: <filter> scheme: GPT

I did not notice anything suspicious but I did an experiment. I installed Ubuntu 20.04 on external old Samsung SSD 120 GB and Elementary 6.0 on Samsung Portable SSD T5. The same story I can see Grub 2.04 screen and which looks like frozen but you can see running seconds from 10 to 0 than Grub starts first default system. More USB pendrive from which I installed Elementary 6.0 starts the same way - first frozen than starts system but I can't chose Try Option, only after system run I can chose Try. But both distros works perfectly with my old radio keyboard.

Regards, swnw

[swnw]

Supplement

The situation is still unsolved but I found kind of the workaround. I bought Mini Wireless Keyboard H20 2.4 GHz and I was sure that problem will disappear alas after I connected dongle and started Linux Mint 20.3 I found frozen Grub screen again.
So after intensive search I discover working keyboard shortcuts - arrows on this keyboard don't work on Grub screen but Mac OS X keyboard shortcuts do.
Ctrl p is up
Ctrl n is down
Ctrl b left
Ctrl f right
and Enter is F it's mine discovery
Using this shortcuts I can move around the Grub screen easily and run what I want. What a relief . Besides this keyboard works fluently with PC and laptop without shortcuts - tested. And probably with android smartphone or smart TV - not tested.

Regards swnw.