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Bug#973733: RTW88_8821ce module fails to find firmware during install and must be reloaded

Hi Daniel,

Daniel Lewart <lewart3@gmail.com> (2021-06-24):
> Debian Installer Team,
> On Nov 5, 2020, Ben Hutchings wrote:
> > Alternately:
> > module="$(basename "$(readlink /sys/bus/*/drivers/$driver/module)")"
> > Some error-checking would be needed.
> Attached is a patch based on this approach.
> Good news:
>   * removed and loaded rtw88_8821ce
>   * created wlp4s0 interface
>   * lists wireless networks
> Bad news:
>   * "Failure of key exchange and association"
>   * "purge skb(s) not reported by firmware"
> Please advise how I can further troubleshoot this.

Thanks for the prospective patch. I've got a system affected by this
(and have yet to document all my findings), and I seem to remember what
I found out was: unloading two modules instead of one does the trick,
and allows me to connect to my home WPA2 network, and perform the rest
of the install. Maybe, compared to your approach, I did the
unloading/reloading in a different order? Most likely, I manually
“modprobe -r”'d both modules and then loaded the relevant one again.

Feel free to try and verify that manually, and maybe try reloading in
the other order, and/or unload both first, and reload afterwards.

Thanks for your help.

Cyril Brulebois (kibi@debian.org)            <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant

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