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Udev service for temporary solve bug 92102
# /etc/udev/rules.d/20-bt-auto-enable-a2dp.rules
# hxss
SUBSYSTEM=="bluetooth", ACTION=="add", RUN+="/home/hxss/.config/scripts/xorg/"
# Dependencies:
# * bluez-tools
# * expect
# * perl
function enable_a2dp() {
# run connect command in bluetoothctl and wait for resolve of services
expect <<< "
spawn bluetoothctl
send \"connect $mac\r\"
log_user 0
expect -re \".*Device $mac ServicesResolved: yes\"
# enable card in pulseaudio
pactl set-card-profile $pulsecard a2dp_sink
logger -p info "mac $mac enabled"
headsetname=`bt-device -l | perl -ne '/(.*) \('$mac'\)/ and print "$1\n"'`
notify-send 'Headset connected' "$headsetname" --icon=blueman-headset
function search_headsets() {
sleep 1
# in all added devices
for mac in `bt-device -l | perl -ne '/.*\((.*)\)/ and print "$1\n"'`
# search for connected device with AudioSink service
if [[ `bt-device -i $mac | perl -00 -ne '/.*Trusted: 1.*\n\s*Blocked: 0.*\n\s*Connected: 1\n\s*UUIDs: .*AudioSink.*/ and print "1\n"'` ]]; then
logger -p info "found mac: $mac"
# convert mac to pulse card name
pulsecard=`perl -pe 's/:/_/g' <<< "bluez_card.$mac"`
echo "search done"
logger -p info "${BASH_SOURCE[0]}"
# get script owner name
user=`stat -c %U $0`
if [ "$user" == `whoami` ]; then
# if script runned by owner - start main function
elif [ "`w -hs $user`" ]; then
# else if user session exist(to prevent running on system startup) - run script from user
machinectl shell --uid=$user .host ${BASH_SOURCE[0]}
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Works great in Manjaro linux. Thanks for that script!

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baizon commented Jul 27, 2018

Side note: For me (Manjaro) it wasn't the package bluez-tools. I needed bluez-utils.
Also thank you very much for that script <3

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Nice, I should try this. Would you mind adding a license to your gist, if it work well (and your license allows), I might package it for nixos. Here's an example of what people seem to do to license their gist:

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inffy commented Jan 23, 2019

I don't know what I am missing but I can get this to work on Manjaro. My headphones always default to SBC even if I have needed ldac modules etc installed.

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Great workaround! For my case (using Linux Mint 19.1, based on Ubuntu), I had to add some extra steps:
a. changing line 1 of the script #!/bin/sh to #!/bin/bash (as sh in Mint/Ubuntu is a very basic shell interpreter, unable to follow your script)
b. creating a systemd service pointing to your script named "auto-enable-a2dp.service" (see:
c. changing line 3 of the rule, replacing RUN with TAG+="systemd", ENV{SYSTEMD_WANTS}="auto-enable-a2dp.service"
d. installing a last dependency 'sudo apt install systemd-container'

It is still possible to debug the service by tapping 'systemctl status auto-enable-a2dp.service'

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Worked for me. Thanks :)

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piiskop commented Jan 25, 2020

peacecop@peacecop-HP-ProBook-4520s:~$ ./
./ 8: Syntax error: "(" unexpected

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It Works well on Manjaro KDE.

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