Ubuntu 22.04系统蓝牙无法开启，提示缺失BCM固件的问题求助

大家好，我最近在Ubuntu 22.04上碰到了个蓝牙搞不定的问题，折腾了好一阵没解决，来请教下各位大佬。

具体情况是这样的：

• 点设置里的蓝牙开关，按钮看起来是打开状态，但下面一直显示“Bluetooth Turned Off”
• 打开我的耳机试着连接，完全没反应，搜都搜不到

我已经试过执行sudo apt update && sudo apt upgrade更新系统了，但问题还是没解决。

下面是我收集的一些系统信息和日志，麻烦帮忙看看：

系统内核版本 #

执行uname -a输出：

Linux tony-Satellite-C55-C 6.5.0-15-generic #15~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Fri Jan 12 18:54:30 UTC 2 x86_64 x86_64 x86_64 GNU/Linux

蓝牙服务运行日志 #

执行journalctl -r -u bluetooth -b -0输出：

Jan 29 20:47:03 tony-Satellite-C55-C bluetoothd[617]: Bluetooth management inte>
Jan 29 20:47:03 tony-Satellite-C55-C bluetoothd[617]: Starting SDP server
Jan 29 20:47:03 tony-Satellite-C55-C systemd[1]: Started Bluetooth service.
Jan 29 20:46:58 tony-Satellite-C55-C bluetoothd[617]: Bluetooth daemon 5.64
Jan 29 20:46:57 tony-Satellite-C55-C systemd[1]: Starting Bluetooth service...

RFKill设备状态 #

执行rfkill输出：

ID TYPE      DEVICE                 SOFT      HARD
0 bluetooth Toshiba Bluetooth unblocked unblocked
1 wlan      phy0              unblocked unblocked
2 wlan      brcmwl-0          unblocked unblocked
3 bluetooth hci0              unblocked unblocked

PCI硬件设备列表 #

执行lspci输出：

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.5 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
07:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n (rev 01)
08:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
09:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5229 PCI Express Card Reader (rev 01)

dmesg中的蓝牙错误信息 #

执行sudo dmesg时发现了关键错误：

[   24.237131] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[   24.237166] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-0930-0225.hcd'
[   24.237188] Bluetooth: hci0: BCM: 'brcm/BCM-0930-0225.hcd'
[   26.252958] Bluetooth: hci0: command 0x1003 tx timeout
[   26.252959] Bluetooth: hci0: Opcode 0x1003 failed: -110

另外，我运行bluetoothctl后尝试执行power on和scan on，结果都返回No default controller available。

现在看起来应该是缺少对应的BCM固件文件，但我不知道该去哪里找正确的固件，也不确定具体该怎么安装。有没有朋友遇到过类似的问题，或者能给我指条路解决这个问题？

备注：内容来源于stack exchange，提问作者Biggs