wcn6855 - stuck in 20Mhz on rx, but full 80mhz on tx

[Yaroslav Isakov]

Hello, Kalle!
Thank you for answer, unfortunately, I would prefer to stay on
openwrt, until it will be ruled out, that issue is not with my laptop.
I have this router for many years, and it was always on openwrt, and I
did not have such issue with my older laptop, on iwlwifi driver, and
with any of my phones, with this exact router.

I've tried different firmwares and drivers on the router -
kmod-ath10k, kmod-ath10k-ct (currently used, most stable),
ath10k-firmware-qca988x-ct-full-htt (currently used, most stable),
ath10k-firmware-qca988x-ct, ath10k-firmware-qca988x - no difference at
all (except stability of MCS)

ср, 13 дек. 2023 г. в 06:16, Kalle Valo <kvalo at kernel.org>:
>
> Yaroslav Isakov <yaroslav.isakov at gmail.com> writes:
>
> > Hello! I found that my new laptop, Thinkpad T14 Gen 4 AMD, cannot use
> > 80Mhz for rx - even though AP supports 80mhz, and tx shows full 80Mhz.
> > I reported it as https://bugzilla.kernel.org/show_bug.cgi?id=218246,
> > with all the details, but, there is no comments in it, so, sending it
> > for visibility.
>
> A team in Qualcomm said that they are looking at this. Do you know if
> this happens also with the stock firmware or is this openwrt specific?
>
> --
> https://patchwork.kernel.org/project/linux-wireless/list/
>
> https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches