135 lines
4.4 KiB
ReStructuredText
135 lines
4.4 KiB
ReStructuredText
.. _raspberrypi-installation:
|
|
|
|
****************************
|
|
Installation on Raspberry Pi
|
|
****************************
|
|
|
|
Mopidy runs nicely on a `Raspberry Pi <http://www.raspberrypi.org/>`_. As of
|
|
January 2013, Mopidy will run with Spotify support on both the armel
|
|
(soft-float) and armhf (hard-float) architectures, which includes the Raspbian
|
|
distribution.
|
|
|
|
.. image:: /_static/raspberry-pi-by-jwrodgers.jpg
|
|
:width: 640
|
|
:height: 427
|
|
|
|
|
|
.. _raspi-wheezy:
|
|
|
|
How to for Debian 7 (Wheezy)
|
|
============================
|
|
|
|
#. Download the latest wheezy disk image from
|
|
http://downloads.raspberrypi.org/images/debian/7/. I used the one dated
|
|
2012-08-08.
|
|
|
|
#. Flash the OS image to your SD card. See
|
|
http://elinux.org/RPi_Easy_SD_Card_Setup for help.
|
|
|
|
#. If you have an SD card that's >2 GB, you don't have to resize the file
|
|
systems on another computer. Just boot up your Raspberry Pi with the
|
|
unaltered partions, and it will boot right into the ``raspi-config`` tool,
|
|
which will let you grow the root file system to fill the SD card. This tool
|
|
will also allow you do other useful stuff, like turning on the SSH server.
|
|
|
|
#. You can login to the default user using username ``pi`` and password
|
|
``raspberry``. To become root, just enter ``sudo -i``.
|
|
|
|
#. To avoid a couple of potential problems with Mopidy, turn on IPv6 support:
|
|
|
|
- Load the IPv6 kernel module now::
|
|
|
|
sudo modprobe ipv6
|
|
|
|
- Add ``ipv6`` to ``/etc/modules`` to ensure the IPv6 kernel module is
|
|
loaded on boot::
|
|
|
|
echo ipv6 | sudo tee -a /etc/modules
|
|
|
|
#. Installing Mopidy and its dependencies from `apt.mopidy.com
|
|
<http://apt.mopidy.com/>`_, as described in :ref:`installation`. In short::
|
|
|
|
wget -q -O - http://apt.mopidy.com/mopidy.gpg | sudo apt-key add -
|
|
sudo wget -q -O /etc/apt/sources.list.d/mopidy.list http://apt.mopidy.com/mopidy.list
|
|
sudo apt-get update
|
|
sudo apt-get install mopidy
|
|
|
|
#. Since I have a HDMI cable connected, but want the sound on the analog sound
|
|
connector, I have to run::
|
|
|
|
sudo amixer cset numid=3 1
|
|
|
|
to force it to use analog output. ``1`` means analog, ``0`` means auto, and
|
|
is the default, while ``2`` means HDMI. You can test sound output
|
|
independent of Mopidy by running::
|
|
|
|
aplay /usr/share/sounds/alsa/Front_Center.wav
|
|
|
|
If you hear a voice saying "Front Center", then your sound is working.
|
|
|
|
To make the change to analog output stick, you can add the ``amixer``
|
|
command to e.g. ``/etc/rc.local``, which will be executed when the system is
|
|
booting.
|
|
|
|
|
|
Fixing audio quality issues
|
|
===========================
|
|
|
|
As of about April 2013 the following steps should resolve any audio
|
|
issues for HDMI and analog without the use of an external USB sound
|
|
card.
|
|
|
|
#. Ensure you system is up to date, for debian based systems run::
|
|
|
|
sudo apt-get update
|
|
sudo apt-get full-upgrade
|
|
|
|
#. Ensure you have a new enough firmware, on debian based systems
|
|
`rpi-update <http://apt.mopidy.com://github.com/Hexxeh/rpi-update>`_
|
|
can be used.
|
|
|
|
#. Update either ``~/.asoundrc`` or ``/etc/asound.conf`` to the
|
|
following::
|
|
|
|
pcm.!default {
|
|
type hw
|
|
card 0
|
|
}
|
|
ctl.!default {
|
|
type hw
|
|
card 0
|
|
}
|
|
|
|
Note that if you have an ``asoundrc`` it will overide
|
|
any global settings.
|
|
|
|
#. Update your ``~/.config/mopidy/mopidy.conf`` to contain::
|
|
|
|
[audio]
|
|
output = alsasink
|
|
|
|
This is to tell GStreamer not to pick Jack which it seems to like
|
|
picking on RaspberryPis for some reason.
|
|
|
|
|
|
Following these steps you should be able to get crackle free sound on
|
|
either HDMI or analog. Note that you might need to ensure that pulse
|
|
is no longer running to get this working nicely.
|
|
|
|
This recipe has been confirmed as working by a number of users on our
|
|
bug tracker and irc. As a reference, the following versions where used
|
|
for testing this, however all newer and some older version are likely
|
|
to work as we have not determined the exact revision that fixed this::
|
|
|
|
$ uname -a
|
|
Linux raspberrypi 3.6.11+ #408 PREEMPT Wed Apr 10 20:33:39 BST 2013 armv6l GNU/Linux
|
|
|
|
$ /opt/vc/bin/vcgencmd version
|
|
Apr 25 2013 01:07:36
|
|
Copyright (c) 2012 Broadcom
|
|
version 386589 (release)
|
|
|
|
The only remaining known issues is a slight gap in playback at track
|
|
changes this is likely due to gapless playback not being implemented
|
|
and is being worked on irrespective of raspi related work.
|