Ubuntu
linux-firmware package

  1. Bug #1836467
  2. Comment #5

Comment 5 for bug 1836467

Revision history for this message
You-Sheng Yang (vicamo) wrote : Re: Bluetooth fails with "Bluetooth: hci0: request failed to create LE connection: status 0x0c" message with Kernel 4.20 and up

Hi @wjbaird, thank you for the logs. From your lspci output, we should be able to confirm it's a "Intel(R) Dual Band Wireless AC 9560"[1], and we should have the support in linux-oem-osp1 kernel since bug 1833065. For -generic kernel flavors, the backport-iwlwifi-dkms in ppa:canonical-hwe-team/pc-oem-dkms[2] is required, and we're working on publish it to ubuntu archive.

For bluetooth, unfortunately we still have no luck to retrieve the firmware name from dmesg. I met this before. All I know is that it takes a complete power off, wait for a period, power on and you may find the line that gives firmware name in this first boot. With the blob firmware name, we may begin to find out which revision of that given blob works for you. If the latest one from linux-firmware git repository[3] still doesn't work well, then we'll probably need to file a bug to Intel instead.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/backport-iwlwifi.git/tree/drivers/net/wireless/intel/iwlwifi/cfg/9000.c#n218
[2]: https://code.launchpad.net/~canonical-hwe-team/+archive/ubuntu/pc-oem-dkms
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git