Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux-raspi2 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1929791
Title:
Bluetooth does not start if system boots from USB
Status in linux-raspi2 package in Ubuntu:
Confirmed
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?
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