戴尔XPS 13（9370）蓝牙问题

我的预装Ubuntu的新Dell XPS 13（9370）上的蓝牙模块存在以下问题。

蓝牙模块由于某种原因被禁用。蓝牙设备（键盘和鼠标）仅在工作过程中停止工作，蓝牙指示灯熄灭并且该模块也在rfkill列表中。

要使其恢复工作，我需要重新启动计算机，启动BIOS，禁用Bluetooth模块并重新启用它。之后，蓝牙模块再次可用。真烦人。

发生这种情况时我的系统日志：

Apr 11 12:25:45 visyu-albatross kernel: [ 2513.913725] usb 1-7: USB disconnect, device number 3
Apr 11 12:25:45 visyu-albatross acpid: input device has been disconnected, fd 22
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting Load/Save RF Kill Switch Status...
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Load/Save RF Kill Switch Status.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c9 of user root.
Apr 11 12:25:46 visyu-albatross acpid: input device has been disconnected, fd 21
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Startup finished in 15ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross bluetoothd[1062]: Endpoint unregistered: sender=:1.80 path=/MediaEndpoint/A2DPSource
Apr 11 12:25:46 visyu-albatross bluetoothd[1062]: Endpoint unregistered: sender=:1.80 path=/MediaEndpoint/A2DPSink
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12109]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c10 of user root.
Apr 11 12:25:46 visyu-albatross systemd[12109]: Received SIGRTMIN+24 from PID 12120 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Startup finished in 14ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12123]: Received SIGRTMIN+24 from PID 12133 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c11 of user root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Default.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Startup finished in 15ms.
Apr 11 12:25:46 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Reached target Shutdown.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Starting Exit the Session...
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Default.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Basic System.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Paths.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Timers.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Stopped target Sockets.
Apr 11 12:25:46 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:46 visyu-albatross systemd[1]: user@0.service: Start request repeated too quickly.
Apr 11 12:25:46 visyu-albatross systemd[1]: Failed to start User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[12140]: Received SIGRTMIN+24 from PID 12148 (kill).
Apr 11 12:25:46 visyu-albatross systemd[1]: Started Session c12 of user root.
Apr 11 12:25:46 visyu-albatross systemd[1]: Stopped User Manager for UID 0.
Apr 11 12:25:46 visyu-albatross systemd[1]: Removed slice User Slice of root.
Apr 11 12:25:47 visyu-albatross systemd[1]: Created slice User Slice of root.
Apr 11 12:25:47 visyu-albatross systemd[1]: Starting User Manager for UID 0...
Apr 11 12:25:47 visyu-albatross systemd[1]: Started Session c13 of user root.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Timers.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Sockets.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Paths.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Basic System.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Default.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Startup finished in 17ms.
Apr 11 12:25:47 visyu-albatross systemd[1]: Started User Manager for UID 0.
Apr 11 12:25:47 visyu-albatross systemd[1]: bluetooth.target: Unit not needed anymore. Stopping.
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopped target Bluetooth.
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopping User Manager for UID 0...
Apr 11 12:25:47 visyu-albatross systemd[12167]: Reached target Shutdown.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Default.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Basic System.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Timers.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Paths.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Stopped target Sockets.
Apr 11 12:25:47 visyu-albatross systemd[12167]: Starting Exit the Session...
Apr 11 12:25:47 visyu-albatross systemd[12167]: Received SIGRTMIN+24 from PID 12184 (kill).
Apr 11 12:25:47 visyu-albatross systemd[1]: Stopped User Manager for UID 0.
Apr 11 12:25:47 visyu-albatross systemd[1]: Removed slice User Slice of root.
Apr 11 12:25:48 visyu-albatross org.gnome.Terminal[2417]: ** (gnome-terminal-server:12197): WARNING **: Unable to set locale modifiers with XSetLocaleModifiers()

我已经尝试了不同的方法：

1. 在中禁用TLP和为蓝牙禁用TLP /etc/default/tlp
2. 将BIOS更新到版本1.2.1
3. 将此行设置为ath10k的modprobe： echo "options ath10k_core skip_otp=y" > /etc/modprobe.d/ath10k.conf
4. 更新linux-firmware软件包，如此处所述：https : //www.killernetworking.com/driver-downloads/kb/faq/1-killer-1535-1525-1435-in-ubuntu-debian

到目前为止，这些都没有帮助。

据我所知，它是以下硬件：QCA 6174 Killer Qualcomm / QCA 1535 Killer Qualcomm

通常，我将这两个蓝牙设备配对并连接：

• 罗技K810键盘
• Logitech MX Anywhere2鼠标

我也遇到了同样的问题，并且我认为使用最新的Windows驱动程序中包含的文件更新蓝牙固件可以改善此问题。我的MD5：

sonic@sonic-XPS-13-9370:/lib/firmware/qca$ md5sum *usb*302*
067fb95e8501bad2683df07d23539e7d  nvm_usb_00000302.bin
b3e2784b16b5b0cf5defa7eb9115956d  nvm_usb_00000302.bin_orig
c9d6334b547a92817458de10243f398c  rampatch_usb_00000302.bin
86c377ab7b2c24cc12cea5e79f71d610  rampatch_usb_00000302.bin_orig

顺便说一句，一个更简单的解决方法是拔下电源并执行挂起/恢复周期。
至少我的是1435年杀手。

在Ubuntu 18.04上更新Sven Killig对Dell XPS 9370的回答：

司机：

https://www.dell.com/support/home/uk/zh-CN/ukbsdt1/drivers/driversdetails?driverId=1JVK3

要覆盖的文件：

AthrBT_0x00000302.dfu (size 40876) -> rampatch_usb_00000302.bin (size 32940)
ramps_0x00000302_48.dfu (size 1982) -> nvm_usb_00000302.bin (size 1953)

复制后列出：

067fb95e8501bad2683df07d23539e7d  /lib/firmware/qca/nvm_usb_00000302.bin
b3e2784b16b5b0cf5defa7eb9115956d  /lib/firmware/qca/nvm_usb_00000302.bin.orig
47ed34d8b6af11d71036aa44314e32d3  /lib/firmware/qca/rampatch_usb_00000302.bin
86c377ab7b2c24cc12cea5e79f71d610  /lib/firmware/qca/rampatch_usb_00000302.bin.orig

在另一个线程中，有报告说更新到较新的内核（4.17或更高版本）也可以解决该问题。

要在Ubuntu 18.04上执行此操作，请运行命令：sudo apt install linux-generic-hwe-18.04，然后重新启动。

我只是这样做而已；因此，如果它不起作用，我会报告。

我还可以确认，作为一种解决方法，挂起（Fn+ End[🌙]）笔记本电脑，然后在拔掉电源的情况下将其唤醒，通常可以可靠地重新启用WiFi和蓝牙功能。

找到了很多解决方案。只有一个工作！我使用的命令是

modprobe btusb && systemctl start bluetooth

您可能需要root权限。

我在这个论坛上找到它。

您可能已经知道，蓝牙在睡眠时会关闭/消失。为此，锻炼是添加一个脚本以在睡眠前关闭蓝牙，并在睡眠后重新打开蓝牙。

我将粘贴答案。

只需将任何名称的可执行脚本放在/ lib / systemd / system-sleep /中。

#!/bin/sh
if [ "$1" = "pre" ]; then
  systemctl stop bluetooth && rmmod btusb
elif [ "$1" = "post" ]; then
  modprobe btusb && systemctl start bluetooth
fi

希望它也对您有用！

另外，仅供参考，这是我的系统信息。

接受的解决方案对我不起作用（或者至少不能孤立地起作用）。dmesg关于缺少名称完全不同的固件文件存在错误。

我正在eoan（19.10）上，并在这里基于https://bbs.archlinux.org/viewtopic.php?id=198865找到一个解决方案。

下载链接很糟糕，所以我从https://drivers.softpedia.com/get/BLUETOOTH/Broadcom/Broadcom-Micro-size-USB-to-Bluetooth-Dongle-Driver-12011010-for-Windows-获得了CAB文件81-64-bit.shtml。您需要cabextract提取它。

那我要做

sudo hex2hcd BCM20702A1_001.002.014.1443.1572.hex -o /lib/firmware/brcm/BCM20702A1-0a5c-216f.hcd

然后重启

适用于我的解决方法：关机并关闭笔记本电脑，稍等片刻，然后再打开。

戴尔问题在这里：https : //www.dell.com/community/Linux-Developer-Systems/XPS-13-9370-no-bluetooth-after-suspend/td-p/6022892

我正在运行ubuntu 17.10 btw，但这没什么区别:)