I haven't managed to reproduce this on several systems (pi4 booting from USB, pi5 booting from NVMe, etc). Setting to incomplete until anyone can come up with a firm reproduction case.
** Changed in: pi-bluetooth (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-raspi2 in Ubuntu. https://bugs.launchpad.net/bugs/1929791 Title: Bluetooth does not start if system boots from USB Status in linux-raspi2 package in Ubuntu: Invalid Status in pi-bluetooth package in Ubuntu: Incomplete Bug description: Hello! I have a strange bug with Bluetooth on Raspberry Pi 4 8Gb and Ubuntu 21.04 (also had it on Ubuntu 20.10). It's internal Bluetooth adapder does not initialize, if I boot system from USB, wherein does not matter what I am using: 16 Gb USB Flash Drive, 2 Tb External USB HDD or 1 Tb External SSD. After system boot up, it shows me "no Bluetooth adapters found", hcidev also shows nothing. I'm getting hciuart.service error: =================== taras@taras-rpi:~$ systemctl status hciuart.service ● hciuart.service - Configure Bluetooth Modems connected by UART Loaded: loaded (/lib/systemd/system/hciuart.service; enabled; vendor prese> Active: failed (Result: exit-code) since Thu 2021-05-27 08:22:57 EEST; 3mi> Process: 599 ExecStart=/usr/bin/btuart (code=exited, status=1/FAILURE) тра 27 08:22:46 taras-rpi systemd[1]: Starting Configure Bluetooth Modems conne> тра 27 08:22:57 taras-rpi btuart[631]: Initialization timed out. тра 27 08:22:57 taras-rpi btuart[631]: bcm43xx_init тра 27 08:22:57 taras-rpi btuart[631]: Flash firmware /lib/firmware/brcm/BCM434> тра 27 08:22:57 taras-rpi btuart[631]: Set Controller UART speed to 3000000 bit> тра 27 08:22:57 taras-rpi systemd[1]: hciuart.service: Control process exited, > тра 27 08:22:57 taras-rpi systemd[1]: hciuart.service: Failed with result 'exit> тра 27 08:22:57 taras-rpi systemd[1]: Failed to start Configure Bluetooth Modem> =================== But if I continue reboot system, it may appear in 1-2 cases from 10. It'v very strange. If I disable this service manually via: =================== sudo systemctl disable hciuart.service =================== restart the system and run: =================== sudo systemctl start hciuart.service =================== Bluetooth adapter will appear in 100% cases. And if I boot Ubuntu from microSD card, everything works properly, Bluetooth starts all times. I thought, mb here is not enougth power for USB devices. I've bought USB hub with external power, but it does not help. Must say, that I don't have this problem on Raspberry Pi OS, I have it on USB HDD too and it works without any problems. Any suggestions? To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1929791/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp