Dear Maintainer,
I have a kernel-related problem with Bluetooth.
After updating to trixie, during boot, I see this message:
[ 15.025264] Bluetooth: hci0: Reading supported features failed (-16)
If I run `vmlinuz-6.1.0-37-amd64` instead, the problem goes away.
Here the relevant portion of `dmesg`
[ 15.000237] Bluetooth: hci0: Waiting for firmware download to complete
[ 15.000309] Bluetooth: hci0: Firmware loaded in 1558311 usecs
[ 15.000402] Bluetooth: hci0: Waiting for device to boot
[ 15.013320] Bluetooth: hci0: Device booted in 12663 usecs
[ 15.019508] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-12-16.ddc
[ 15.022282] Bluetooth: hci0: Applying Intel DDC parameters completed
[ 15.023382] Bluetooth: hci0: Firmware revision 0.1 build 19 week 44 2021
[ 15.025264] Bluetooth: hci0: Reading supported features failed (-16)
[ 15.025271] Bluetooth: hci0: Error reading debug features
[ 15.025278] Bluetooth: hci0: HCI LE Coded PHY feature bit is set, but its usage is not supported.
[ 15.043597] Console: switching to colour frame buffer device 240x67
[ 15.063110] i915 0000:00:02.0: [drm] fb0: i915drmfb frame buffer device
[ 15.079867] Bluetooth: MGMT ver 1.23
[ 15.105175] NET: Registered PF_ALG protocol family
[ 15.195903] Bluetooth: RFCOMM TTY layer initialized
[ 15.196342] Bluetooth: RFCOMM socket layer initialized
[ 15.196348] Bluetooth: RFCOMM ver 1.11
Possibly related Kernal bug:
https://bugzilla.kernel.org/show_bug.cgi?id=219387
Thanks
—F