[Bug 1903048] [NEW] Bluetooth won't activate on the pi 400

[Launchpad Bug Tracker]

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The new Pi 400 has a slightly different Wifi/BT chip to the Pi4. Whilst
wifi works happily, Bluetooth fails to operate. This doesn't appear to
be an issue with either the firmware (the latest versions from upstream
Raspbian have been tried), or the kernel (a known-good raspi kernel has
been tested under Ubuntu), but with Bluez itself. Specifically, tracing
the initialization with btmon on Raspbian and Ubuntu, the stack
consistently fails when attempting to "Set Default PHY" on the latter.
Curiously, under Ubuntu the adapter also appears to lack a MAC address.

** Affects: bluez (Ubuntu)
     Importance: Undecided
     Assignee: Dave Jones (waveform)
         Status: New


** Tags: patch raspi
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Bluetooth won't activate on the pi 400
https://bugs.launchpad.net/bugs/1903048
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