Goran Mekić <meka@tilda.center> writes:

> On 7/13/24 18:18, Chris wrote:
>> On 2024-07-13 15:23, Goran Mekić wrote:
>>> Hello,
>>>
>>> I have a laptop with a weird behaving keyboard. Under Linux
>>> everything is fine,
>>> but under FreeBSD it is out of sync. On single key stroke of letter
>>> 'c' (just for
>>> example) terminal first doesn't do anything for about a second,
>>> then it prints
>>> multiple letters 'c' in a row. Is there any way to debug this
>>> behavior and why
>>> it's happening? Any chance there's a known workaround? I don't know
>>> what other
>>> info would be useable, so if you can tell me what other than
>>> usbconfig and pciconf
>>> to look at, I'll be glad to.
>> It would be very helpful to know what hardware you're using. It's
>> otherwise very
>> difficult to answer this sort of question.
>
> You can see that yesterday was the hottest day in my city ever. First,
> I didn't manage to ask what I wanted: what info should I send, second
> I sent the reply only to one person :facepalm:
>
> Anyway, I think the most condensed way to show the hardware is
> https://bsd-hardware.info/?probe=3400ac8782
>
> Regards,
> meka

IRQ override [1] which breaks active low IRQs on AMD Ryzen 6000+ systems
might be the reason of your troubles. I don't know the exact place in
the FreeBSD src/ to check whether the same override is implemented or
not, but you'd try to patch ACPI tables yourself [2] till it is fixed.

Regards,
Dmitry

[1]
https://lore.kernel.org/all/CAJZ5v0isLQVX3EqsokFthY5ka=v4vse9t52s3egsv41fkm1...@mail.gmail.com/
[2] https://www.reddit.com/r/linuxhardware/comments/vdc6tz/comment/ijjjwah/

-- 
https://wiki.freebsd.org/DmitrySalychev

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