Fedora
藍牙關閉，即使“打開”
我有一台 Thinkpad X1 Carbon 7th Gen，執行 Fedora 30。我的問題是我無法使藍牙工作。我嘗試了多種方法來解決這個問題，但都沒有效果。
- 通過設置 GUI
當我轉到“設置/藍牙”時，我可以打開藍牙（右上角的撥動開關）。但是，文本沒有改變，並告訴我藍牙已關閉。
iwlwifi.conf當然，我已經在 BIOS 中檢查了藍牙是否已啟動。此外，我創建
/etc/modprobe.d/iwlwifi.conf如下：options iwlwifi bt_coex_active=0
- TLP
最後，我設置
/etc/default/tlp為（僅相關摘錄）：[…] # Restore radio device state (Bluetooth, WiFi, WWAN) from previous shutdown # on system startup: 0=disable, 1=enable. # Note: the parameters DEVICES_TO_DISABLE/ENABLE_ON_STARTUP/SHUTDOWN below # are ignored when this is enabled. # Default: 0 RESTORE_DEVICE_STATE_ON_STARTUP=0 # Radio devices to disable on startup: bluetooth, wifi, wwan. # Separate multiple devices with spaces. # Default: <none> #DEVICES_TO_DISABLE_ON_STARTUP="bluetooth" # Radio devices to enable on startup: bluetooth, wifi, wwan. # Separate multiple devices with spaces. # Default: <none> DEVICES_TO_ENABLE_ON_STARTUP="wifi bluetooth" # Radio devices to disable on shutdown: bluetooth, wifi, wwan. # (workaround for devices that are blocking shutdown). # Default: <none> DEVICES_TO_DISABLE_ON_SHUTDOWN="bluetooth wifi wwan" # Radio devices to enable on shutdown: bluetooth, wifi, wwan. # (to prevent other operating systems from missing radios). # Default: <none> #DEVICES_TO_ENABLE_ON_SHUTDOWN="wwan" # Radio devices to enable on AC: bluetooth, wifi, wwan. # Default: <none> #DEVICES_TO_ENABLE_ON_AC="bluetooth wifi wwan" # Radio devices to disable on battery: bluetooth, wifi, wwan. # Default: <none> #DEVICES_TO_DISABLE_ON_BAT="bluetooth wifi wwan" # Radio devices to disable on battery when not in use (not connected): # bluetooth, wifi, wwan. # Default: <none> #DEVICES_TO_DISABLE_ON_BAT_NOT_IN_USE="bluetooth wifi wwan" […] # ------------------------------------------------------------------------------ # tlp-rdw - Parameters for the radio device wizard # Possible devices: bluetooth, wifi, wwan. # Notes: # - Parameters are disabled by default, remove the leading # to enable them # - Separate multiple radio devices with spaces # Default: <none> (for all parameters below) # Radio devices to disable on connect. DEVICES_TO_DISABLE_ON_LAN_CONNECT="wifi wwan" #DEVICES_TO_DISABLE_ON_WIFI_CONNECT="wwan" #DEVICES_TO_DISABLE_ON_WWAN_CONNECT="wifi" # Radio devices to enable on disconnect. DEVICES_TO_ENABLE_ON_LAN_DISCONNECT="wifi " #DEVICES_TO_ENABLE_ON_WIFI_DISCONNECT="" #DEVICES_TO_ENABLE_ON_WWAN_DISCONNECT="" # Radio devices to enable/disable when docked. #DEVICES_TO_ENABLE_ON_DOCK="" #DEVICES_TO_DISABLE_ON_DOCK="" # Radio devices to enable/disable when undocked. #DEVICES_TO_ENABLE_ON_UNDOCK="wifi" #DEVICES_TO_DISABLE_ON_UNDOCK=""
- 人機互動配置
我還嘗試禁用藍牙的電源優化，但在我想要切換時
powertop嘗試執行>> /usr/sbin/hciconfig hci0 up &> /dev/null &>> Good Bluetooth device interface status當我執行 Fedora（？）時，我有
bin而不是sbin，所以我sudo /usr/bin/hciconfig hci0 up &> /dev/null手動執行。
- 通過 CLI 打開藍牙
$ sudo hciconfig up hci0: Type: Primary Bus: USB BD Address: DC:71:96:99:3F:A8 ACL MTU: 1021:4 SCO MTU: 96:6 DOWN RX bytes:16660 acl:0 sco:0 events:2700 errors:0 TX bytes:666973 acl:0 sco:0 commands:2698 errors:0
- 檢查
rfkill狀態這似乎不是這裡的問題。
$ rfkill ID TYPE DEVICE SOFT HARD 0 bluetooth tpacpi_bluetooth_sw unblocked unblocked 1 bluetooth hci0 unblocked unblocked 2 wlan phy0 unblocked unblocked
- 通過調查
dmesg我已經使用添加了我的手動事件# comments。請注意，當我打開電腦並進入左上角菜單時，我可以“關閉”藍牙……哪個狀態是“關閉”！
$ sudo dmesg | grep -E 'Bluetooth|hci0|intel/ibt|iwl|usb 1-10' [ 3.038389] usb 1-10: new full-speed USB device number 5 using xhci_hcd [ 3.166272] usb 1-10: New USB device found, idVendor=8087, idProduct=0aaa, bcdDevice= 0.02 [ 3.166273] usb 1-10: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 12.560006] Bluetooth: Core ver 2.22 [ 12.560023] Bluetooth: HCI device and connection manager initialized [ 12.560025] Bluetooth: HCI socket layer initialized [ 12.560027] Bluetooth: L2CAP socket layer initialized [ 12.560031] Bluetooth: SCO socket layer initialized [ 12.591904] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002) [ 12.614868] Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015 [ 12.615864] Bluetooth: hci0: Device revision is 2 [ 12.615865] Bluetooth: hci0: Secure boot is enabled [ 12.615865] Bluetooth: hci0: OTP lock is enabled [ 12.615865] Bluetooth: hci0: API lock is enabled [ 12.615866] Bluetooth: hci0: Debug lock is disabled [ 12.615866] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [ 12.617782] Bluetooth: hci0: Found device firmware: intel/ibt-17-16-1.sfi [ 12.624703] iwlwifi 0000:00:14.3: Found debug destination: EXTERNAL_DRAM [ 12.624704] iwlwifi 0000:00:14.3: Found debug configuration: 0 [ 12.624901] iwlwifi 0000:00:14.3: loaded firmware version 46.93e59cf4.0 op_mode iwlmvm [ 12.750348] iwlwifi 0000:00:14.3: Detected Intel(R) Wireless-AC 9560 160MHz, REV=0x318 [ 12.756808] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 12.756956] iwlwifi 0000:00:14.3: Allocated 0x00400000 bytes for firmware monitor. [ 12.803914] iwlwifi 0000:00:14.3: base HW address: dc:71:96:99:3f:a4 [ 12.888770] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs' [ 12.892885] iwlwifi 0000:00:14.3 wlp0s20f3: renamed from wlan0 [ 14.288430] Bluetooth: hci0: Waiting for firmware download to complete [ 14.288852] Bluetooth: hci0: Firmware loaded in 1635914 usecs [ 14.288894] Bluetooth: hci0: Waiting for device to boot [ 14.301955] Bluetooth: hci0: Device booted in 12769 usecs [ 14.302307] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-17-16-1.ddc [ 14.305022] Bluetooth: hci0: Applying Intel DDC parameters completed [ 30.630541] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 30.745533] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 30.810557] iwlwifi 0000:00:14.3: FW already configured (0) - re-configuring [ 30.843148] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 30.957796] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 31.022390] iwlwifi 0000:00:14.3: FW already configured (0) - re-configuring [ 34.449002] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 34.566179] iwlwifi 0000:00:14.3: Applying debug destination EXTERNAL_DRAM [ 34.633419] iwlwifi 0000:00:14.3: FW already configured (0) - re-configuring # In the top-left menu, I "Turn off" the Bluetooth… that is already off (see picture) [ 136.308722] usb 1-10: USB disconnect, device number 5 # In "Settings/Bluetooth", I click on the toggle button to switch it on. [ 157.642145] usb 1-10: new full-speed USB device number 6 using xhci_hcd [ 157.771145] usb 1-10: New USB device found, idVendor=8087, idProduct=0aaa, bcdDevice= 0.02 [ 157.771151] usb 1-10: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 157.775067] Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015 [ 157.776096] Bluetooth: hci0: Device revision is 2 [ 157.776098] Bluetooth: hci0: Secure boot is enabled [ 157.776100] Bluetooth: hci0: OTP lock is enabled [ 157.776103] Bluetooth: hci0: API lock is enabled [ 157.776104] Bluetooth: hci0: Debug lock is disabled [ 157.776107] Bluetooth: hci0: Minimum firmware build 1 week 10 2014 [ 157.776872] Bluetooth: hci0: Found device firmware: intel/ibt-17-16-1.sfi [ 159.727328] Bluetooth: hci0: Waiting for firmware download to complete [ 159.727931] Bluetooth: hci0: Firmware loaded in 1907957 usecs [ 159.728175] Bluetooth: hci0: Waiting for device to boot [ 159.740907] Bluetooth: hci0: Device booted in 12575 usecs [ 159.741009] Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-17-16-1.ddc [ 159.743971] Bluetooth: hci0: Applying Intel DDC parameters completed這一切都毫無效果。
➥如何讓藍牙真正起作用？
嗯，我覺得有點傻，但是……藍牙守護程序根本就沒有執行！
所以我通過以下方式解決了它：
systemctl enable bluetooth那裡！
該
iwlwifi驅動程序表明您的筆記型電腦中可能有英特爾 WiFi+藍牙模組。要正常工作，它需要韌體：模組的 WiFi 和藍牙部分都有自己的韌體。
sudo dmesg嘗試啟動藍牙功能後執行。如果出現類似 的消息Direct firmware load for intel/ibt-<something> failed with error ...，則您缺少英特爾藍牙的韌體文件。錯誤消息將辨識/lib/firmware核心下期望韌體文件所在的確切路徑名。例如，如果錯誤消息中的路徑名是
intel/ibt-20-1-4.sfi，那麼韌體文件必須放在/lib/firmware/intel/ibt-20-1-4.sfi.您可以在 Linux 韌體 git 儲存庫中找到大多數英特爾 WiFi+藍牙模組（以及一些其他英特爾系統組件）的韌體。在該頁面上找到您的系統請求的韌體文件，然後點擊
plain最右側列上標記的連結以下載韌體文件。然後將其複製到系統上的相應目錄：sudo cp <wherever you downloaded the file to> /lib/firmware/intel/請注意，您可能需要多個文件。如果有一個
*.ddc文件和一個*.sfi同名的文件，請同時下載它們：一旦驅動程序載入了第一個文件，它也會嘗試載入另一個文件。您可能需要多次嘗試以確保滿足所有韌體文件請求。