Fix: USB QMK Keyboard Not Recognized Linux (toast.ooo)

submitted 11 months ago by robotdna@toast.ooo to c/ergomechkeyboards@lemmy.world

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Posting this here for sake of search engines and if others are losing their mind trying to troubleshoot.

Problem: I have a USB-C Piantor, connected through a USB/thunderbolt port on a Dell XPS 13. My OS is Arch Linux, and it when plugging the keyboard in, the Piantor would show up on lsusb but not do anything. dmesg shows the following error:

device descriptor read/64, error -71.

Solution: Disable USB suspend in a root terminal:

# echo -1 >/sys/module/usbcore/parameters/autosuspend

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[-] crandel@programming.dev 2 points 11 months ago

I have slighty different problem. Every time I turn my laptop on my Corne keyboard is not recognized, until I plug-out and plug-in again. I have no idea, how to fix it. My setup is here

https://github.com/Crandel/vial-qmk/blob/crandel/keyboards/crkbd/keymaps/crandel/config.h

[-] robotdna@toast.ooo 2 points 11 months ago

Is this is Linux machine? And is it waking the machine from sleep or booting that you notice the issue?

[-] crandel@programming.dev 2 points 11 months ago

Yes, I have Arch Linux in all my laptops and all of them has the same issue after boot. I'm not using sleep at all

[-] robotdna@toast.ooo 2 points 11 months ago

I guess I'd try what I posted above, but also, I'd verify if lsusb is showing the devices at all. If not, then maybe there's a way to trigger a rescan by the USB controllers on reboot

[-] crandel@programming.dev 2 points 11 months ago

That's a good idea

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this post was submitted on 22 Nov 2023

14 points (93.8% liked)

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