Ubuntu25.10藍(lán)牙Wifi不可用的解決過程

更新時(shí)間：2026年05月20日 09:59:54 作者：ZGUIZ

本文作者分享了解決古董筆記本安裝Ubuntu25.10后,藍(lán)牙和WiFi無法正常啟動的問題的過程,詳細(xì)記錄了查找、下載、加載固件及驅(qū)動簽名注冊等步驟

藍(lán)牙無法啟動

1）按照教程安裝了bluez。

sudo apt update
sudo apt install bluez

結(jié)果藍(lán)牙還是無法啟動

2）通過命令查詢藍(lán)牙狀態(tài)：

$ hciconfig -a
hci0:	Type: Primary  Bus: USB
	BD Address: XX:XX:XX:XX:XX  ACL MTU: 0:0  SCO MTU: 0:0
	DOWN 
	RX bytes:676 acl:0 sco:0 events:18 errors:0
	TX bytes:57 acl:0 sco:0 commands:19 errors:0
	Features: 0xxz 0xxx 0xxx 0xxx 0xxx 0xxx 0xxx 0xxx
	Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
	Link policy: 
	Link mode: PERIPHERAL ACCEPT

可以看到藍(lán)牙是DOWN的狀態(tài)

3）嘗試啟動藍(lán)牙

$ sudo hciconfig hci0 up 
Can't init device hci0: Connection timed out (110)

看到藍(lán)牙啟動異常

4）打印啟動日志

$ sudo dmesg | grep -i bluetooth
[    4.724382] Bluetooth: Core ver 2.22
[    4.724432] NET: Registered PF_BLUETOOTH protocol family
[    4.724436] Bluetooth: HCI device and connection manager initialized
[    4.724443] Bluetooth: HCI socket layer initialized
[    4.724447] Bluetooth: L2CAP socket layer initialized
[    4.724456] Bluetooth: SCO socket layer initialized
[    6.060376] Bluetooth: hci0: BCM: chip id 70
[    6.061375] Bluetooth: hci0: BCM: features 0x06
[    6.077294] Bluetooth: hci0: BCM43142A
[    6.077304] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[    6.143709] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[    6.143726] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-04ca-2009.hcd'
[    6.143729] Bluetooth: hci0: BCM: 'brcm/BCM-04ca-2009.hcd'
[    8.210327] Bluetooth: hci0: command 0x1003 tx timeout
[    8.210329] Bluetooth: hci0: Opcode 0x1003 failed: -110
[    8.607318] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[    8.607328] Bluetooth: BNEP filters: protocol multicast
[    8.607337] Bluetooth: BNEP socket layer initialized
[   75.241504] Bluetooth: hci0: unexpected event for opcode 0x1003
[   85.606015] Bluetooth: hci0: BCM: Reset failed (-110)
[  222.432794] Bluetooth: hci0: BCM: chip id 70
[  222.433875] Bluetooth: hci0: BCM: features 0x06
[  222.449797] Bluetooth: hci0: BCM43142A
[  222.449817] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[  222.451067] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[  222.451080] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-04ca-2009.hcd'
[  222.451085] Bluetooth: hci0: BCM: 'brcm/BCM-04ca-2009.hcd'
[  224.519245] Bluetooth: hci0: command 0x1003 tx timeout
[  224.519259] Bluetooth: hci0: Opcode 0x1003 failed: -110
[  317.362894] Bluetooth: hci0: unexpected event for opcode 0x1003
[  327.766613] Bluetooth: hci0: BCM: Reset failed (-110)
[  330.423732] Bluetooth: hci0: BCM: chip id 70
[  330.424724] Bluetooth: hci0: BCM: features 0x06
[  330.440745] Bluetooth: hci0: BCM43142A
[  330.440751] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[  330.441774] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[  330.441778] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-04ca-2009.hcd'
[  330.441779] Bluetooth: hci0: BCM: 'brcm/BCM-04ca-2009.hcd'
[  332.502288] Bluetooth: hci0: Opcode 0x1003 failed: -110
[  332.503731] Bluetooth: hci0: unexpected event for opcode 0x1003
[  342.613887] Bluetooth: hci0: BCM: Reset failed (-110)
[  478.173127] Bluetooth: hci0: BCM: chip id 70
[  478.174082] Bluetooth: hci0: BCM: features 0x06
[  478.190134] Bluetooth: hci0: BCM43142A
[  478.190151] Bluetooth: hci0: BCM43142A0 (001.001.011) build 0000
[  478.191239] Bluetooth: hci0: BCM: firmware Patch file not found, tried:
[  478.191254] Bluetooth: hci0: BCM: 'brcm/BCM43142A0-04ca-2009.hcd'
[  478.191260] Bluetooth: hci0: BCM: 'brcm/BCM-04ca-2009.hcd'
[  480.210701] Bluetooth: hci0: Opcode 0x1003 failed: -110

可以看到，啟動時(shí)缺少了BCM43142A0-04ca-2009.hcd這個(gè)固件

5）我們可以到github的winterheart/broadcom-bt-firmware項(xiàng)目倉庫下載，并找到brcm目錄下的BCM43142A0-04ca-2009.hcd

6）將下載的固件放到指定目錄

sudo cp BCM43142A0-04ca-2009.hcd /lib/firmware/brcm/BCM43142A0-04ca-2009.hcd

7）移除并重新加載藍(lán)牙驅(qū)動

sudo modprobe -r btusb
sudo modprobe btusb
sudo hciconfig hci0 up

這樣就可以看到藍(lán)牙正常啟動了。

Wifi無法啟動

1）查看網(wǎng)絡(luò)硬件狀態(tài)

sudo lshw -C network

  *-network UNCLAIMED       

       description: Ethernet controller

       product: RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller

       vendor: Realtek Semiconductor Co., Ltd.

       physical id: 0.1

       bus info: pci@0000:07:00.1

       version: 12

       width: 64 bits

       clock: 33MHz

       capabilities: pm msi pciexpress msix vpd bus_master cap_list

       configuration: latency=0

       resources: ioport:3000(size=256) memory:d1504000-d1504fff memory:d1500000-d1503fff

  *-network UNCLAIMED

       description: Network controller

       product: BCM43142 802.11b/g/n

       vendor: Broadcom Inc. and subsidiaries

       physical id: 0

       bus info: pci@0000:08:00.0

       version: 01

       width: 64 bits

       clock: 33MHz

       capabilities: pm msi pciexpress cap_list

       configuration: latency=0

       resources: memory:d1400000-d1407fff

可以看到，網(wǎng)卡處于UNCLAIMED狀態(tài)，意味著沒有驅(qū)動

2）安裝驅(qū)動

sudo apt install broadcom-sta-dkms

3）手動加載驅(qū)動

sudo modprobe wl

modprobe: ERROR: could not insert 'wl': Key was rejected by service

根據(jù)控制臺顯示的結(jié)果，查詢到這個(gè)問題是因?yàn)橛捎诎踩珕拥谋Ｗo(hù)機(jī)制，UEFI 安全啟動（Secure Boot）功能阻止了驅(qū)動加載

4）為驅(qū)動簽名并注冊MOK

1.導(dǎo)入系統(tǒng)生成的密鑰：

sudo mokutil --import /var/lib/shim-signed/mok/MOK.der

之后系統(tǒng)會要求你輸入一個(gè)秘密，記住這個(gè)密碼

2. 重啟電腦：

sudo reboot

3. 電腦重啟過程中，屏幕上會出現(xiàn)一個(gè)藍(lán)色的 "Perform MOK management" 界面。需要按順序執(zhí)行以下步驟：

按任意鍵進(jìn)入管理界面。
選擇 "Enroll MOK"。
選擇 "Continue"。
選擇 "Yes"。
輸入你在上一步設(shè)置的臨時(shí)密碼。
最后選擇 "Reboot" 重啟。
重啟后Wifi正?？捎?/li>

總結(jié)

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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Ubuntu25.10藍(lán)牙Wifi不可用的解決過程

目錄

藍(lán)牙無法啟動

Wifi無法啟動

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