Bug#985632: firmware-brcm80211: [REGRESSION] RPi4B 5GHz WiFi stopped working with 20210208-4, 20201218-3 was fine
Hi Maximilian, thank you again for your response.
> but are you sure that these
> bootflags are still adequate for the latest cypress firmware?
What did you mean by "bootflags"??
Did you mean /proc/cmdline (i.e. cmdline.txt in Raspberry Pi)?
> concerning bluetooth unfortunately this seems missing firmware
> in latest upstream firmware git (see #962038 ) or possible wget info
> https://wiki.debian.org/RaspberryPi4#Bluetooth
I know that bluetooth interferes with 2.4GHz WiFi with pure Debian
packages as reported in
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=984844
I do not see any intererence between bluetooth and 5GHz WiFi.
I doubt the intererence as bluetooth frequency does not overlap with 5GHz WiFi at all.
With the firmware 20210208-4, 2.4GHz WiFi works fine provided that
bluetooth is turned off by rfkill etc.
I am running a combination of pure Debian packages and
encountered the reported symptom. What is a Debian way to
use 5GHz WiFi? Do you need additional information?
> this should not be reproducible as 20210315-1 and 20210315-1~exp1 are
> unchanged (just uploaded into experimental before unstable).
I will re-check 20210315-1.
Best regards, Ryutaroh
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