Public bug reported:
I've observed this in both armhf and arm64 on:
19.10.1-server
18.04.4-server
core18
It does not seem to happen on rpi3, only on rpi4.
If you want to use Bluetooth on rpi, one must first run:
$ sudo hciattach /dev/ttyAMA0 bcm43xx 921600 noflow
On RPI4, this results in a timeout on the first attempt. Reattempting it
right after will work though, 100% of the times I've tried it.
In the failed attempt, the output is:
bcm43xx_init
Initialization timed out.
And the following is the only new message to show up in dmesg when this fails:
[ 270.303691] uart-pl011 fe201000.serial: no DMA platform data
** Affects: linux-raspi2 (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1862831
Title:
hciattach on rpi4 times out on first attempt
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-raspi2/+bug/1862831/+subscriptions
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
