This issue was fixed by a patch to `bluetooth-next`, which was accepted
into the v5.15 kernel included with Ubuntu 22.04 LTS.
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-
next.git/commit/?id=340cd23d9dec58b1b07ecaa205a161faf50eab8a
I can confirm that, if present, the
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1924741
Title:
Load Broadcom firmware for Dell Bluetooth device
Thank you Kai-Heng,
I confirm that the patch `lp1924741.patch` works. The patchram is loaded
is HSP/HFP functions.
However, just to be clear, as far as I am aware the addition is
superfluous. The line `{ USB_DEVICE(0x413c, 0x8197) },` appears to have
no effect if added after the catch-all for
** Attachment added: "debug-usb-devices-413c-8197"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741/+attachment/5488974/+files/debug-usb-devices-413c-8197
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** Patch added: "btusb.c.patch"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741/+attachment/545/+files/btusb.c.patch
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** Attachment added: "lsusb"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741/+attachment/544/+files/lsusb
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https://bugs.launchpad.net/bugs/1924741
** Attachment added: "dmesg"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741/+attachment/543/+files/dmesg
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Apport does not run on my machine for some reason, but I'm happy to
collate and supply any required information by other means.
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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Done, thanks!
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1924741
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https://bugs.launchpad.net/bugs/1065400
Title:
Support for loading Broadcom bluetooth firmware
Public bug reported:
The Broadcom Bluetooth kernel module supports loading patches for
specific hardware devices. Which devices require patchram support is
defined in an array of structs in the kernel module `btusb`, which allow
matching by Vendor ID and, optionally, Product ID.
The Dell-branded
I have a Dell/Broadcom 413c:8143 device and the patchram is apparently
still not being applied for me in Ubuntu 20.04, kernel
`5.4.0-70-generic`.
I see that the following struct was added in early 2017:
/* Dell Computer - Broadcom based */
{ USB_VENDOR_AND_INTERFACE_INFO(0x413c,
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