我已经重置了无数次……令人沮丧。
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
这就是我每次让蓝牙再次工作所做的事情。
[ 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
这是我唯一一次听说 Ubuntu 安装到硬盘驱动器时会发生这种情况,但我们可以
/lib/firmware/brcm
在放入固件后更改属性以查看它是否可以防止文件被删除重启看看问题是否还存在
请记住
sudo chattr -i /lib/firmware/brcm
在进行分发升级之前!当 .../brcm 文件夹设置为不可变时,对 linux 固件的任何更新都将导致更新失败。这反过来会导致升级崩溃。
我说的是一个相当不幸的经历。