bluez : 연결을 끊은 후 블루투스 헤드폰을 다시 연결할 수 없습니다

블루투스 헤드셋과 랩톱을 한 번 페어링 할 수 있습니다. 그러나 헤드셋을 분리하면 다시 연결할 수 없습니다. 작동하는 유일한 방법은 블루투스 데몬을 다시 시작하는 것입니다.

service bluetooth restart

그렇게하면 로그에 다음이 표시됩니다.

bluetoothd:  Terminating
bluetoothd:  Stopping hci0 event socket
bluetoothd:  Stopping SDP server
bluetoothd:  Exit
bluetoothd:  Bluetooth daemon 4.99
bluetoothd:  Starting SDP server
bluetoothd:  Excluding (conf) network
bluetoothd:  Excluding (conf) gatt_example
bluetoothd:  Excluding (conf) time
bluetoothd:  Excluding (conf) alert
bluetoothd:  Failed to open RFKILL control device
bluetoothd:  Listening for HCI events on hci0
bluetoothd:  HCI dev 0 up
bluetoothd:  Proximity GATT Reporter Driver: Operation not permitted (1)
bluetoothd:  Could not get the contents of DMI chassis type
bluetoothd:  Unable to load keys to adapter_ops: Function not implemented (38)
bluetoothd:  Adapter /org/bluez/8237/hci0 has been enabled

헤드폰을 성공적으로 연결할 수 있습니다.

bluetoothd:  Can't open input device: No such file or directory (2)
bluetoothd:  AVRCP: failed to init uinput for 44:66:a7:81:3C:84
bluetoothd:  Badly formated or unrecognized command: AT+XEVENT=Bose SoundLink,158
bluetoothd:  Badly formated or unrecognized command: AT+BIA=0,0,0,1,1,1,0

그러나 연결을 끊고 다시 연결하면 작동하지 않으며 로그에 아무것도 표시되지 않습니다.

연결을 끊은 후에 왜 헤드폰을 다시 연결할 수 없습니까? 블루투스 데몬을 다시 시작해야하는 이유는 무엇입니까? 이 문제를 어떻게 해결할 수 있습니까?

bluez 4.99데비안에서 사용 하고 있습니다.

사용자 정의 커널 4.4를 사용하고 있습니다.

나는 alsa (pulseaudio 없음)를 사용하고 있습니다.

특정 브랜드의 헤드셋에는 문제가 있습니다. 나는 같은 문제를 겪고 있으며이 파이썬 스크립트는 블루투스 헤드셋을 다시 연결하는 것이 좋습니다.

python 3.5 이상이 설치되어 있어야합니다. 스크립트 사용 방법에 대한 지시 사항은 헤더에 설명이 필요합니다.

https://gist.github.com/pylover/d68be364adac5f946887b85e6ed6e7ae

편집 :이 답변 에이 스크립트의 최신 코드를 요청으로 포함 시켰지만 작성자가 항상 스크립트를 업데이트하므로 제공된 링크에서 최신 반복을 얻는 것이 좋습니다.

#! /usr/bin/env python3.5
"""
Fixing bluetooth stereo headphone/headset problem in ubuntu 16.04 and also debian jessie, with bluez5.
Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.
This will be only fixes the bluez5 problem mentioned above .
Licence: Freeware
See ``python3.5 a2dp.py -h``.
Shorthands:
    $ alias speakers="a2dp.py 10:08:C1:44:AE:BC"
    $ alias headphones="a2dp.py 00:22:37:3D:DA:50"
    $ alias headset="a2dp.py 00:22:37:F8:A0:77 -p hsp"
    $ speakers
Check here for the latest updates: https://gist.github.com/pylover/d68be364adac5f946887b85e6ed6e7ae
Thanks to:
 * https://github.com/DominicWatson, for adding the ``-p/--profile`` argument.
 * https://github.com/IzzySoft, for mentioning wait before connecting again.
 * https://github.com/AmploDev, for v0.4.0
 * https://github.com/Mihara, for autodetect & autorun service
 * https://github.com/dabrovnijk, for systemd service
Change Log
----------
- 0.5.0
  * Autodetect & autorun service
- 0.4.1
  * Sorting device list
- 0.4.0
  * Adding ignore_fail argument by @AmploDev.
  * Sending all available streams into selected sink, after successfull connection by @AmploDev.
- 0.3.3
  * Updating default sink before turning to ``off`` profile.
- 0.3.2
  * Waiting a bit: ``-w/--wait`` before connecting again.
- 0.3.0
  * Adding -p / --profile option for using the same script to switch between headset and A2DP audio profiles
- 0.2.5
  * Mentioning [mac] argument.
- 0.2.4
  * Removing duplicated devices in select device list.
- 0.2.3
  * Matching ANSI escape characters. Tested on 16.10 & 16.04
- 0.2.2
  * Some sort of code enhancements.
- 0.2.0
  * Adding `-V/--version`, `-w/--wait` and `-t/--tries` CLI arguments.
- 0.1.1
  * Supporting the `[NEW]` prefix for devices & controllers as advised by @wdullaer
  * Drying the code.
"""

import sys
import re
import asyncio
import subprocess as sb
import argparse


__version__ = '0.4.0'


HEX_DIGIT_PATTERN = '[0-9A-F]'
HEX_BYTE_PATTERN = '%s{2}' % HEX_DIGIT_PATTERN
MAC_ADDRESS_PATTERN = ':'.join((HEX_BYTE_PATTERN, ) * 6)
DEVICE_PATTERN = re.compile('^(?:.*\s)?Device\s(?P<mac>%s)\s(?P<name>.*)' % MAC_ADDRESS_PATTERN)
CONTROLLER_PATTERN = re.compile('^(?:.*\s)?Controller\s(?P<mac>%s)\s(?P<name>.*)' % MAC_ADDRESS_PATTERN)
WAIT_TIME = .75
TRIES = 4
PROFILE = 'a2dp'


_profiles = {
    'a2dp': 'a2dp_sink',
    'hsp': 'headset_head_unit',
    'off': 'off'
}

# CLI Arguments
parser = argparse.ArgumentParser(prog=sys.argv[0])
parser.add_argument('-e', '--echo', action='store_true', default=False,
                    help='If given, the subprocess stdout will be also printed on stdout.')
parser.add_argument('-w', '--wait', default=WAIT_TIME, type=float,
                    help='The seconds to wait for subprocess output, default is: %s' % WAIT_TIME)
parser.add_argument('-t', '--tries', default=TRIES, type=int,
                    help='The number of tries if subprocess is failed. default is: %s' % TRIES)
parser.add_argument('-p', '--profile', default=PROFILE,
                    help='The profile to switch to. available options are: hsp, a2dp. default is: %s' % PROFILE)
parser.add_argument('-V', '--version', action='store_true', help='Show the version.')
parser.add_argument('mac', nargs='?', default=None)


# Exceptions
class SubprocessError(Exception):
    pass


class RetryExceededError(Exception):
    pass


class BluetoothctlProtocol(asyncio.SubprocessProtocol):
    def __init__(self, exit_future, echo=True):
        self.exit_future = exit_future
        self.transport = None
        self.output = None
        self.echo = echo

    def listen_output(self):
        self.output = ''

    def not_listen_output(self):
        self.output = None

    def pipe_data_received(self, fd, raw):
        d = raw.decode()
        if self.echo:
            print(d, end='')

        if self.output is not None:
            self.output += d

    def process_exited(self):
        self.exit_future.set_result(True)

    def connection_made(self, transport):
        self.transport = transport
        print('Connection MADE')

    async def send_command(self, c):
        stdin_transport = self.transport.get_pipe_transport(0)
        # noinspection PyProtectedMember
        stdin_transport._pipe.write(('%s\n' % c).encode())

    async def search_in_output(self, expression, fail_expression=None):
        if self.output is None:
            return None

        for l in self.output.splitlines():
            if fail_expression and re.search(fail_expression, l, re.IGNORECASE):
                raise SubprocessError('Expression "%s" failed with fail pattern: "%s"' % (l, fail_expression))

            if re.search(expression, l, re.IGNORECASE):
                return True

    async def send_and_wait(self, cmd, wait_expression, fail_expression='fail'):
        try:
            self.listen_output()
            await self.send_command(cmd)
            while not await self.search_in_output(wait_expression.lower(), fail_expression=fail_expression):
                await wait()
        finally:
            self.not_listen_output()

    async def disconnect(self, mac):
        print('Disconnecting the device.')
        await self.send_and_wait('disconnect %s' % ':'.join(mac), 'Successful disconnected')

    async def connect(self, mac):
        print('Connecting again.')
        await self.send_and_wait('connect %s' % ':'.join(mac), 'Connection successful')

    async def trust(self, mac):
        await self.send_and_wait('trust %s' % ':'.join(mac), 'trust succeeded')

    async def quit(self):
        await self.send_command('quit')

    async def get_list(self, command, pattern):
        result = set()
        try:
            self.listen_output()
            await self.send_command(command)
            await wait()
            for l in self.output.splitlines():
                m = pattern.match(l)
                if m:
                    result.add(m.groups())
            return sorted(list(result), key=lambda i: i[1])
        finally:
            self.not_listen_output()

    async def list_devices(self):
        return await self.get_list('devices', DEVICE_PATTERN)

    async def list_paired_devices(self):
        return await self.get_list('paired-devices', DEVICE_PATTERN)

    async def list_controllers(self):
        return await self.get_list('list', CONTROLLER_PATTERN)

    async def select_paired_device(self):
        print('Selecting device:')
        devices = await self.list_paired_devices()
        count = len(devices)

        if count < 1:
            raise SubprocessError('There is no connected device.')
        elif count == 1:
            return devices[0]

        for i, d in enumerate(devices):
            print('%d. %s %s' % (i+1, d[0], d[1]))
        print('Select device[1]:')
        selected = input()
        return devices[0 if not selected.strip() else (int(selected) - 1)]


async def wait():
    return await asyncio.sleep(WAIT_TIME)


async def execute_command(cmd, ignore_fail=False):
    p = await asyncio.create_subprocess_shell(cmd, stdout=sb.PIPE, stderr=sb.PIPE)
    stdout, stderr = await p.communicate()
    stdout, stderr = \
        stdout.decode() if stdout is not None else '', \
        stderr.decode() if stderr is not None else ''
    if p.returncode != 0 or stderr.strip() != '':
        message = 'Command: %s failed with status: %s\nstderr: %s' % (cmd, p.returncode, stderr)
        if ignore_fail:
            print('Ignoring: %s' % message)
        else:
            raise SubprocessError(message)
    return stdout


async def execute_find(cmd, pattern, tries=0, fail_safe=False):
    tries = tries or TRIES

    message = 'Cannot find `%s` using `%s`.' % (pattern, cmd)
    retry_message = message + ' Retrying %d more times'
    while True:
        stdout = await execute_command(cmd)
        match = re.search(pattern, stdout)

        if match:
            return match.group()
        elif tries > 0:
            await wait()
            print(retry_message % tries)
            tries -= 1
            continue

        if fail_safe:
            return None

        raise RetryExceededError('Retry times exceeded: %s' % message)


async def find_dev_id(mac, **kw):
    return await execute_find('pactl list cards short', 'bluez_card.%s' % '_'.join(mac), **kw)


async def find_sink(mac, **kw):
    return await execute_find('pacmd list-sinks', 'bluez_sink.%s' % '_'.join(mac), **kw)


async def set_profile(device_id, profile):
    print('Setting the %s profile' % profile)
    try:
        return await execute_command('pactl set-card-profile %s %s' % (device_id, _profiles[profile]))
    except KeyError:
        print('Invalid profile: %s, please select one one of a2dp or hsp.' % profile, file=sys.stderr)
        raise SystemExit(1)


async def set_default_sink(sink):
    print('Updating default sink to %s' % sink)
    return await execute_command('pacmd set-default-sink %s' % sink)


async def move_streams_to_sink(sink):
    streams = await execute_command('pacmd list-sink-inputs | grep "index:"', True)
    for i in streams.split():
        i = ''.join(n for n in i if n.isdigit())
        if i != '':
            print('Moving stream %s to sink' % i)
            await execute_command('pacmd move-sink-input %s %s' % (i, sink))
    return sink


async def main(args):
    global WAIT_TIME, TRIES

    if args.version:
        print(__version__)
        return 0

    mac = args.mac

    # Hacking, Changing the constants!
    WAIT_TIME = args.wait
    TRIES = args.tries

    exit_future = asyncio.Future()
    transport, protocol = await asyncio.get_event_loop().subprocess_exec(
        lambda: BluetoothctlProtocol(exit_future, echo=args.echo), 'bluetoothctl'
    )

    try:

        if mac is None:
            mac, _ = await protocol.select_paired_device()

        mac = mac.split(':' if ':' in mac else '_')
        print('Device MAC: %s' % ':'.join(mac))

        device_id = await find_dev_id(mac, fail_safe=True)
        if device_id is None:
            print('It seems device: %s is not connected yet, trying to connect.' % ':'.join(mac))
            await protocol.trust(mac)
            await protocol.connect(mac)
            device_id = await find_dev_id(mac)

        sink = await find_sink(mac, fail_safe=True)
        if sink is None:
            await set_profile(device_id, args.profile)
            sink = await find_sink(mac)

        print('Device ID: %s' % device_id)
        print('Sink: %s' % sink)

        await set_default_sink(sink)
        await wait()

        await set_profile(device_id, 'off')

        if args.profile is 'a2dp':
            await protocol.disconnect(mac)
            await wait()
            await protocol.connect(mac)

        device_id = await find_dev_id(mac)
        print('Device ID: %s' % device_id)

        await set_profile(device_id, args.profile)
        await set_default_sink(sink)
        await move_streams_to_sink(sink)

    except (SubprocessError, RetryExceededError) as ex:
        print(str(ex), file=sys.stderr)
        return 1
    finally:
        print('Exiting bluetoothctl')
        await protocol.quit()
        await exit_future

        # Close the stdout pipe
        transport.close()

    if args.profile == 'a2dp':
        print('"Enjoy" the HiFi stereo music :)')
    else:
        print('"Enjoy" your headset audio :)')


if __name__ == '__main__':
    sys.exit(asyncio.get_event_loop().run_until_complete(main(parser.parse_args())))

나는 당신에게 몇 가지를 말할 수 있습니다 :

a) 리눅스에서 블루투스에 대한 나의 (작은) 경험은 일반적으로 고장 났다고 말합니다. 거기 또는 여기에 나는 항상 어떤 종류의 문제가 있습니다.
b) bluez 4.992012 년 3 월에 발행되었으므로 실제로 매우 오래된 버전을 사용하고 있습니다. 최소한 최신 버전을 테스트 해 보는 것이 좋습니다.

이것들은 당신의 문제를 설명해야합니다.