UBUNTU 20.04上的蓝牙不断断开

Question

我已经在我的笔记本上安装了Ubuntu20.04，看起来蓝牙不像预期的那样工作。

它连接到我的Logi MX ERGO设备，也连接到我的TWS耳机，但是运行了一段时间(显然是随机时间)它就停止工作了，所以我需要使用触摸屏来切换蓝牙管理器或蓝调器，这样它就会自动连接到我的设备.但再过一段时间，它又会断开连接；

它是grep blue /var/log/syslog的输出

Apr 12 18:06:34 leonardo-G3-3579 bluetoothd[834]: /org/bluez/hci0/dev_60_F4_3A_3A_91_F2/sep2/fd0: fd(53) ready
Apr 12 18:06:46 leonardo-G3-3579 systemd[1]: blueman-mechanism.service: Succeeded.
Apr 12 18:06:49 leonardo-G3-3579 bluetoothd[834]: bt_uhid_send: Invalid argument (22)
Apr 12 18:06:49 leonardo-G3-3579 bluetoothd[834]: message repeated 10 times: [ bt_uhid_send: Invalid argument (22)]
Apr 12 18:08:49 leonardo-G3-3579 bluetoothd[834]: No reply to Suspend request
Apr 12 18:08:53 leonardo-G3-3579 dbus-daemon[838]: [system] Activating via systemd: service name='org.blueman.Mechanism' unit='blueman-mechanism.service' requested by ':1.100' (uid=1000 pid=2163 comm="/usr/bin/python3 /usr/bin/blueman-applet " label="unconfined")
Apr 12 18:08:53 leonardo-G3-3579 blueman-mechanism[4127]: Unable to init server: Could not connect: Connection refused
Apr 12 18:08:53 leonardo-G3-3579 blueman-mechanism[4127]: Unable to init server: Não foi possível conectar: Connection refused
Apr 12 18:08:53 leonardo-G3-3579 blueman-mechani[4127]: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Apr 12 18:08:53 leonardo-G3-3579 dbus-daemon[838]: [system] Successfully activated service 'org.blueman.Mechanism'
Apr 12 18:08:59 leonardo-G3-3579 bluetoothd[834]: /org/bluez/hci0/dev_60_F4_3A_3A_91_F2/sep2/fd1: fd(39) ready
Apr 12 18:09:23 leonardo-G3-3579 systemd[1]: blueman-mechanism.service: Succeeded.
Apr 12 18:11:47 leonardo-G3-3579 bluetoothd[834]: bt_uhid_send: Invalid argument (22)
Apr 12 18:11:47 leonardo-G3-3579 bluetoothd[834]: message repeated 10 times: [ bt_uhid_send: Invalid argument (22)]
Apr 12 18:11:52 leonardo-G3-3579 dbus-daemon[838]: [system] Activating via systemd: service name='org.blueman.Mechanism' unit='blueman-mechanism.service' requested by ':1.100' (uid=1000 pid=2163 comm="/usr/bin/python3 /usr/bin/blueman-applet " label="unconfined")
Apr 12 18:11:52 leonardo-G3-3579 blueman-mechanism[4425]: Unable to init server: Could not connect: Connection refused
Apr 12 18:11:52 leonardo-G3-3579 blueman-mechanism[4425]: Unable to init server: Não foi possível conectar: Connection refused
Apr 12 18:11:52 leonardo-G3-3579 blueman-mechani[4425]: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Apr 12 18:11:52 leonardo-G3-3579 dbus-daemon[838]: [system] Successfully activated service 'org.blueman.Mechanism'
Apr 12 18:12:00 leonardo-G3-3579 bluetoothd[834]: bt_uhid_send: Invalid argument (22)
Apr 12 18:12:00 leonardo-G3-3579 bluetoothd[834]: message repeated 9 times: [ bt_uhid_send: Invalid argument (22)]
Apr 12 18:12:10 leonardo-G3-3579 bluetoothd[834]: /org/bluez/hci0/dev_60_F4_3A_3A_91_F2/sep2/fd2: fd(55) ready
Apr 12 18:12:24 leonardo-G3-3579 systemd[1]: blueman-mechanism.service: Succeeded.
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]: Traceback (most recent call last):
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:   File "/usr/lib/python3/dist-packages/blueman/main/indicators/GtkStatusIcon.py", line 19, in <lambda>
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:     gtk_item.connect('activate', lambda _, idx=index: activate(idx))
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:   File "/usr/lib/python3/dist-packages/blueman/main/Tray.py", line 37, in _activate_menu_item
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:     return AppletService().ActivateMenuItem('(ai)', indexes)
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:   File "/usr/lib/python3/dist-packages/gi/overrides/Gio.py", line 351, in __call__
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]:     result = self.dbus_proxy.call_sync(self.method_name, arg_variant,
Apr 12 18:35:58 leonardo-G3-3579 blueman.desktop[2309]: gi.repository.GLib.Error: g-io-error-quark: Timeout was reached (24)
Apr 12 18:35:58 leonardo-G3-3579 whoopsie-upload-all[6745]: /var/crash/_usr_bin_blueman-tray.1000.crash already marked for upload, skipping
Apr 12 18:35:58 leonardo-G3-3579 whoopsie-upload-all[6745]: /var/crash/_usr_bin_blueman-assistant.1000.crash already marked for upload, skipping
Apr 12 18:53:15 leonardo-G3-3579 dbus-daemon[838]: [system] Activating via systemd: service name='org.blueman.Mechanism' unit='blueman-mechanism.service' requested by ':1.100' (uid=1000 pid=2163 comm="/usr/bin/python3 /usr/bin/blueman-applet " label="unconfined")
Apr 12 18:53:15 leonardo-G3-3579 blueman-mechanism[9135]: Unable to init server: Could not connect: Connection refused
Apr 12 18:53:15 leonardo-G3-3579 blueman-mechanism[9135]: Unable to init server: Não foi possível conectar: Connection refused
Apr 12 18:53:15 leonardo-G3-3579 blueman-mechani[9135]: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
Apr 12 18:53:15 leonardo-G3-3579 dbus-daemon[838]: [system] Successfully activated service 'org.blueman.Mechanism'
Apr 12 18:53:25 leonardo-G3-3579 bluetoothd[834]: /org/bluez/hci0/dev_60_F4_3A_3A_91_F2/sep2/fd3: fd(62) ready
Apr 12 18:53:29 leonardo-G3-3579 bluetoothd[834]: bt_uhid_send: Invalid argument (22)
Apr 12 18:53:29 leonardo-G3-3579 bluetoothd[834]: message repeated 10 times: [ bt_uhid_send: Invalid argument (22)]
Apr 12 18:53:47 leonardo-G3-3579 systemd[1]: blueman-mechanism.service: Succeeded.

有人遇到过这个问题吗？我读了很多论坛的主题，尝试了一些替代方案，没有人为我工作过。

我将非常感谢您对我如何解决这个问题的任何帮助或建议。

Answer 1

取消对/etc/bluetooth/input.conf中的以下行的注释，为我修复了它：

UserspaceHID=true

Answer 2

我也有同样的问题。在尝试以下步骤之前，先找到在Reddit上完全断开设备连接的解决方案：

跑

bluetoothctl

您将得到一个新的提示符，您应该在该提示下输入

agent on
default agent

然后，使用设备连接到的设备的MAC地址(由冒号分隔的长串字母数字字符(类似于11:BB:3C:44:5E:FF:7G)连接(您应该能够通过在此提示符下键入devices找到它)，运行

trust <MAC>
pair <MAC>
connect <MAC>

Answer 3

一个月来，我一直在努力解决这个问题，幸运的是，我刚刚找到了解决办法:移除耳机设备，让它重新安装。有很多方法可以做到这一点；也许最简单的方法是进入蓝牙管理器，点击耳机，然后选择Remove。您还可以使用shell提示符中的蓝牙can来完成此操作。这个解决方案似乎甚至可以在重新启动时存活下来！