USB Keyboard not working.

ndv99 · 2018-02-09 21:32:54

I've spent the past week or so trying to address this error. I've browsed the Wiki and ridiculous numbers of forum posts, all to no effect. Here's everything I've tried:

-Unplugging it and putting it back in
-System reboot
-Software update
-Reinstalling all the drivers
-Editing options in mkinitcpio (removing usb and usbinput in favour of block and keyboard)
-Editing boot options (in the boot menu and in the boot loader config file)

I've run lsusb and deduced that the keyboard is this device:

Bus 009 Device 003: ID 0c45:7603 Microdia

Keyboard model:
-REDRAGON Karura K502

System information (from screenfetch:
-Kernel: x86_64 Linux 4.15.1-2-ARCH
-Shell: bash 4.4.18
-WM: GNOME Shell
-CPU: AMD FX-8350 Eight-Core @ 8x 4.198GHz
-GPU: GeForce GTX 970

Does anyone have any ideas?

seth · 2018-02-09 22:44:17

You kinda forgot to elaborate on "not working" - notably showkey and evtest or libinput-debug-events functionality. "xinput test" and xev would be further checks...

ndv99 · 2018-02-19 02:07:05

seth wrote:

You kinda forgot to elaborate on "not working" - notably showkey and evtest or libinput-debug-events functionality. "xinput test" and xev would be further checks...

Sorry, shoulda mentioned. Tried xev tests during the process as well and the keys in question (ctrl, alt, and super) all returned the same key value as shift.

seth · 2018-02-19 08:10:36

Ie. xev reports all modifiers as Shift?

Please provide the actual output of "xev -event keyboard" and notably try showkey as well (whether they produce different keycodes) - ideally not on gnome but on a linux console (no GUI session)

The pattern however looks suspicious (they keys are physically adjacent, so this is likely a hardware defect)

Arch Linux

#1 2018-02-09 21:32:54

USB Keyboard not working.

#2 2018-02-09 22:44:17

Re: USB Keyboard not working.

#3 2018-02-19 02:07:05

Re: USB Keyboard not working.

#4 2018-02-19 08:10:36

Re: USB Keyboard not working.

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