我已經重置了很多次了……令人沮喪。
wget https://www.dropbox.com/s/xbmm9vfg2fby2zn/fw-04ca_2006.hcd
sudo cp fw-04ca_2006.hcd /lib/firmware/brcm/BCM43142A0-04ca-2006.hcd
sudo modprobe -r btusb
sudo modprobe btusb這就是我每次讓藍牙再次工作時所做的事情。
[ 0.184551] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 1.501933] psmouse serio4: elantech: assuming hardware version 4 (with firmware version 0x381f00)
[ 9.977602] Bluetooth: Core ver 2.20
[ 9.977615] Bluetooth: HCI device and connection manager initialized
[ 9.977618] Bluetooth: HCI socket layer initialized
[ 9.977620] Bluetooth: L2CAP socket layer initialized
[ 9.977626] Bluetooth: SCO socket layer initialized
[ 10.243919] bluetooth hci0: Direct firmware load for brcm/BCM43142A0-04ca-2006.hcd failed with error -2
[ 10.243925] Bluetooth: hci0: BCM: patch brcm/BCM43142A0-04ca-2006.hcd not found
[ 12.252479] Bluetooth: hci0 command 0x1003 tx timeout
[ 20.540677] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 20.540679] Bluetooth: BNEP filters: protocol multicast
[ 20.540683] Bluetooth: BNEP socket layer initialized
[ 20.715433] Bluetooth: RFCOMM TTY layer initialized
[ 20.715441] Bluetooth: RFCOMM socket layer initialized
[ 20.715447] Bluetooth: RFCOMM ver 1.11
[ 23.061182] Bluetooth: hci0 command 0x1003 tx timeout答案1
這是我唯一一次聽說 Ubuntu 安裝到硬碟時發生這種情況，但我們可以/lib/firmware/brcm在放入韌體後更改屬性，看看是否可以防止檔案被刪除
wget https://www.dropbox.com/s/xbmm9vfg2fby2zn/fw-04ca_2006.hcd
sudo cp fw-04ca_2006.hcd /lib/firmware/brcm/BCM43142A0-04ca-2006.hcd
sudo chattr +i /lib/firmware/brcm/重新啟動並查看問題是否仍然存在
答案2
請記得
sudo chattr -i /lib/firmware/brcm
在進行發行版升級之前！
當 .../brcm 資料夾設定為不可變時對 linux-firmware 進行任何更新都會導致更新失敗。這反過來會導致升級崩潰。
我是從一次相當不幸的經驗中說出來的。