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Bug#984844: bluez-firmware: 2.4 GHz WiFi is interfered by bluetooth on RPi4B

Package: bluez-firmware
Version: 1.2-4
Severity: important
Tags: upstream fixed-upstream sid bullseye
X-Debbugs-Cc: debian-arm@lists.debian.org
Control: forwarded -1 https://github.com/RPi-Distro/firmware-nonfree/issues/8

Dear Maintainer,

I have installed
bluetooth	5.55-3
bluez	5.55-3
bluez-firmware	1.2-4

When I block bluetooth by /usr/sbin/rfkill, 2.4 GHz WiFi on
Raspberry Pi 4 seems to work, at least ping packets can reach to
machines on the same LAN.

On the other hand, when I unblock bluetooth by /usr/sbin/rfkill,
2.4GHz WiFi does not work well. Connection by SSID is established,
but no ping packet reach to machines on the same LAN.

This seems fixed at

Linux kernel is Debian
linux-image-5.10.0-4-rt-arm64	5.10.19-1 

Best regards, Ryutaroh Matsumoto

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable'), (1, 'experimental')
Architecture: arm64 (aarch64)

Kernel: Linux 5.10.0-4-rt-arm64 (SMP w/4 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CRAP
Locale: LANG=C.UTF-8, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

-- no debconf information

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