I am an archlinux user using Sony WH-1000XM3 bluetooth noise-cancellation headphones. I am also using pulseaudio and it took me a while to switch the bluetooth headphones to HSP/HFP profile so the microphone can work too. Switching the bluetooth profile of your headphones to HeadSet Audio works but it is only monophonic audio and without noise-cancellation and I had to switch to piperwire also. But at least now the microphone works!
I was wondering how distros that by default have already switched to pipewire deal with this situation. So I started a fedora 34 (beta) edition and attached both my bluetooth adapter TP-LINK UB400 v1 and my web camera Logitech HD Webcam C270.
The test should be to open a jitsi meet and a zoom test meeting and verify that my headphones can work without me doing any stranger CLI magic.
tldr; works out of the box !
lsusb
[root@fedora ~]# lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd QEMU USB Tablet
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
as you can see both usb devices have properly attached to fedora34
kernel
we need Linux kernel > 5.10.x to have a proper support
[root@fedora ~]# uname -a
Linux fedora 5.11.10-300.fc34.x86_64 #1 SMP Thu Mar 25 14:03:32 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux pipewire
and of-course piperwire installed
[root@fedora ~]# rpm -qa | grep -Ei 'blue|pipe|pulse'
libpipeline-1.5.3-2.fc34.x86_64
pulseaudio-libs-14.2-3.fc34.x86_64
pulseaudio-libs-glib2-14.2-3.fc34.x86_64
pipewire0.2-libs-0.2.7-5.fc34.x86_64
bluez-libs-5.56-4.fc34.x86_64
pipewire-libs-0.3.24-4.fc34.x86_64
pipewire-0.3.24-4.fc34.x86_64
bluez-5.56-4.fc34.x86_64
bluez-obexd-5.56-4.fc34.x86_64
pipewire-gstreamer-0.3.24-4.fc34.x86_64
pipewire-pulseaudio-0.3.24-4.fc34.x86_64
gnome-bluetooth-libs-3.34.5-1.fc34.x86_64
gnome-bluetooth-3.34.5-1.fc34.x86_64
bluez-cups-5.56-4.fc34.x86_64
NetworkManager-bluetooth-1.30.2-1.fc34.x86_64
pipewire-alsa-0.3.24-4.fc34.x86_64
pipewire-jack-audio-connection-kit-0.3.24-4.fc34.x86_64
pipewire-utils-0.3.24-4.fc34.x86_64
screenshots
Bluetooth Profiles
Online Meetings
A customer of mine, had me approached to install a virtualization solution at his company.
The first goal was portability the second productivity.
I had to find a way (transparent from their employes) to remove their work environment from their hardware.
Productivity is easy … just remove any unnecessary software and keep their desktops as clean as they can be.
“Attention Span” is the big monster.
I found that with no-sound they couldnt listen to youtube or to internet radio stations or mp3 and they had to install a radio at their office.
One radio station, one music for all. That approach was much better than every other solution i could figure out.
Imaging a work space with 15 people, how every one wants to listen to a different music/news, youtube or whatever.
That was noise - and noise is the enemy!
As for portability - we dont want to use this old hardware - was easy enough too.
I’ve built a tinycorelinux image and convert every PC to a thin or thick client.
RDP to their Terminal Server was the only thing i had to ensure is working.
Dnsmasq is the simplest and best solution to do that (PXE).
created /tftpboot/ dir and worked my way through that.
I used fedora cause it is a virtualization box with all the latest versions of software.
I wanted to test fedora and selinux wasnt so bad after all.
Till the latest upgrade!
/tftpboot directory system_u:object_r:tftpdir_t:s0
/tftpboot/.* all files system_u:object_r:tftpdir_t:s0
dnsmasq now needs dnsmasq_t
type=AVC msg=audit(1349450414.500:20456): avc: denied { read } for pid=27175 comm="dnsmasq" name="tftpboot" dev="dm-1" ino=524451 scontext=system_u:system_r:dnsmasq_t:s0 tcontext=unconfined_u:object_r:tftpdir_t:s0 tclass=dir
relabeling is out of question.
The solution is to transfer all the necessaries files to a new directory that
semanage fcontext -l
doesnt marked as something else and chcon the entire directory (recursive) to label to dnsmasq_t all files and dirs.
or to add a new policy rule that accepts dnsmasq_t for /tftpboot directory
or DISABLE selinux cause you’ll never now what else will through to you !
Its unacceptable to make such core changes without have a plan for backwards compatibility or a way to inform your faithful admin that he/shee will have a problem because you have destroyed everything he/she built the last year!.