Re: [REGRESSION] usbhid -110 timeouts and reset loop for Keychron M5 (3434:d068) at boot since v7.3

[Michal Pecio <michal.pecio@gmail.com>]

There was some problem and I haven't got this message until I found
it in the mailing list archive today.

On Sun, 25 Oct 2026 12:11:21 +0100, Dennis Wissel wrote:
> 7.2.11-1-cachyos booted with "xhci_hcd.dyndbg=+p usbcore.dyndbg=+p
> log_buf_len=16M", mouse plugged in at boot. Below are the lines for
> port 1-1 / slot 1. The full log is 270 KB, so I can send it off-list or
> post it somewhere if needed.
> 
> This time all four interfaces failed with -71, not only 2 and 3 as
> in my earlier 7.2.11 boots, and there was no "usb 1-1: reset", only
> the disconnect/re-enumeration. The device seems to drop off the bus
> right after Set Configuration, at the first control transfer of the
> usbhid probe:

OK, but you showed a different log where the device gets reset.
That's the interesting case which causes problems with 1f36cc9fa949
and would be useful to see with debugging enabled.

I wonder if it's possible that usbhid driver requests a reset to
recover from errors and usbcore performs it blindly without paying
attention to connect status? Maybe enable usbhid debug as well.

BTW, it's likely that the same will happen if the mouse is plugged
during operation, so there may be no need to reboot each time. And
log would be free of unrelated boot time noise.

Regards,
Michal