[Bug 2131732] Re: RTL8922A BT USB: Bluetooth: hci0: RTL: download fw command failed (-13)

** Tags added: stella

** Tags added: jira-stella-2222

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https://bugs.launchpad.net/bugs/2131732

Title:
RTL8922A BT USB: Bluetooth: hci0: RTL: download fw command failed
(-13)

Status in linux package in Ubuntu:
In Progress
Status in linux-firmware package in Ubuntu:
Fix Committed
Status in linux-oem-6.17 package in Ubuntu:
Invalid
Status in linux source package in Noble:
Won't Fix
Status in linux-firmware source package in Noble:
Fix Committed
Status in linux-oem-6.17 source package in Noble:
In Progress
Status in linux source package in Plucky:
Won't Fix
Status in linux-firmware source package in Plucky:
Won't Fix
Status in linux-oem-6.17 source package in Plucky:
Invalid
Status in linux source package in Questing:
In Progress
Status in linux-firmware source package in Questing:
Fix Committed
Status in linux-oem-6.17 source package in Questing:
Invalid
Status in linux source package in Resolute:
In Progress
Status in linux-firmware source package in Resolute:
Fix Committed
Status in linux-oem-6.17 source package in Resolute:
Invalid

Bug description:
[SRU Justification]

[ Impact ]

New Bluetooth component may failed with dmesg error:
```
Bluetooth: hci0: RTL: download fw command failed (-13)
```

The proposed fixes, linux-firmware commit fcf22f506bf5 ("rtl_bt:
Update RTL8922A BT USB firmware to 0x41C0_C905") under upstream tag
20251111, along with kernel v6.18-rc6 commit cd8dbd9ef600 ("Bluetooth:
btrtl: Avoid loading the config file on security"), support signature
key for secure boot.

[ Test Plan ]

Re-run checkbox test case:
```
$ sudo checkbox-cli run com.canonical.certification::bluetooth/detect-output
```

[ Where problems could occur ]

Opaque binary blob. May cause problem whatever possible.

[ Other Info ]

RTL8922A kernel driver was supported since v6.12-rc1, and the
corresponding firmware binaries were included in linux-firmware/noble
and on. Nominate for N, Q, R.

============ original bug report ============

[Summary]
bluetooth/detect-output failed
certification_status: blocker

[I/O log]

BT hardware not available

[Reproduce Steps]
1. sudo checkbox-cli run com.canonical.certification::bluetooth/detect-output

[Results]
failed

[Additional Information]
Manifest: canonical-oem-stella-noble-oem-24.04c 20251022-94
BIOS Version: B.08
SKU: BANTEI-PV-C10
BIOS ID: 0PESKU8#ABA
Tester: auto-sanity-bot

Proposed fixes are:
* https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=fcf22f506bf5c290742cdc5260d0633c95e6f284 ("rtl_bt: Update RTL8922A BT USB firmware to 0x41C0_C905") under upstream tag 20251111.
* https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=cd8dbd9ef600435439bb0e70af0a1d9e2193aecb ("Bluetooth: btrtl: Avoid loading the config file on security") in v6.18-rc6.

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