Public bug reported: 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 ** Changed in: bluez (Ubuntu) Assignee: (unassigned) => Dave Jones (waveform) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1903048 Title: Bluetooth won't activate on the pi 400 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1903048/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs