Attachment 262541 Details for Bug 388971 – Steps needed to fix pulseaudio startup

Steps needed to fix pulseaudio startup

bz.rpt (text/plain), 4.32 KB, created by David A. De Graaf on 2007-11-17 22:34:03 UTC

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Creator: David A. De Graaf

Created: 2007-11-17 22:34:03 UTC

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>The new F8 sound system needs to have pulseaudio running as a daemon,
>but the startup is done by gnome, of all things.  For those of us
>who don't/won't use gnome, there's no sound.  I use xfce, but that's
>not the point.  Sound should not be dependent on any window manager.
>This daemon should be started by a script in /etc/init.d like any
>normal daemon.
>
>I use a default init level of 3 and run startxfce4 when I want to use
>X.  I expect sound to be available so that aplay works at all times,
>including before login, while running in a console, and when X is
>being used.  Sound production must be available to any and all users
>that are logged in and must work for anyone's crontab.
>
>The default F8 installation falls far short - with several
>configuration errors - but these are fixable.
>
>Here's how I fixed it.
>
>1)  Edit /etc/udev/rules.d/40-alsa.rules to set MODE="0666" to all
>"snd" files:
>  # do not edit this file, it will be overwritten on update
>
>  KERNEL=="controlC[0-9]*",       NAME="snd/%k", MODE="0666"
>  KERNEL=="hwC[D0-9]*",           NAME="snd/%k", MODE="0666"
>  KERNEL=="pcmC[D0-9cp]*",        NAME="snd/%k", MODE="0666"
>  KERNEL=="midiC[D0-9]*",         NAME="snd/%k", MODE="0666"
>  KERNEL=="timer",                NAME="snd/%k", MODE="0666"
>  KERNEL=="seq",                  NAME="snd/%k", MODE="0666"
>  KERNEL=="mixer0",               SYMLINK+="mixer"
>  KERNEL=="dsp0",                 SYMLINK+="dsp"
>  KERNEL=="audio0",               SYMLINK+="audio"
>
>I guess we just have to ignore the admonition not to edit this file;
>there seems to be no other way to do it.
>
>The clue that permissions were too restrictive came from running
>    aplay -lL
>When root did it, the sound card was detected and displayed
>reasonably;  when non-root did it, no sound devices were found.
>This contrasts with Fedora 7, where it works identically for all.
>
>In the original Fedora 8 configuration we had:
>  # ll /dev/snd
>  total 0
>  crw-rw----+ 1 root root 116, 8 2007-11-17 10:09 controlC0
>  crw-rw----+ 1 root root 116, 4 2007-11-17 10:09 midiC0D0
>  crw-rw----+ 1 root root 116, 7 2007-11-17 10:09 pcmC0D0c
>  crw-rw----+ 1 root root 116, 6 2007-11-17 10:09 pcmC0D0p
>  crw-rw----+ 1 root root 116, 5 2007-11-17 10:09 pcmC0D1p
>  crw-rw----+ 1 root root 116, 3 2007-11-17 10:09 seq
>  crw-rw----+ 1 root root 116, 2 2007-11-17 10:08 timer
>
>With only root able to access these file, it was impossible for an
>ordinary user to start the pulseaudio daemon.
>
>2)  Edit /etc/passwd to set the home directory of user pulse to
>/var/run/pulse, eg,
>  pulse:x:492:488:PulseAudio daemon:/var/run/pulse:/sbin/nologin
>
>This is necessary to allow the --system option to work properly.
>On startup, pulseaudio must create directories .gconf and .gconfd in
>its home directory.  This it cannot do when the home directory is /.
>
>3)  On my system, certain files in /var/run and directory
>/tmp/gconfd-pulse/ had somehow become owned by user kismet:kismet.
>I can't imagine how this happened, but it blocked use by pulseaudio,
>which complained in /var/log/messages.
>I removed these files and restarted pulseaudio with no more
>complaints.
>
>4)  Edit /etc/pulse/default.pa to comment out the x11 lines:
>  ### Publish connection data in the X11 root window
>    ## .ifexists /usr/lib/pulse-0.9/modules//module-x11-publish.so
>    ## load-module module-x11-publish
>    ## .endif
>
>Attempting to load this module outside of X will make pulseaudio fail
>to start.  Its absence seems to be harmless.
>
>5)  Edit /etc/rc.d/rc.local to add these lines;
>  # Start the pulseaudio daemon
>  echo "/usr/bin/pulseaudio -D --system --log-target=syslog"
>  /usr/bin/pulseaudio -D --system --log-target=syslog
>  /usr/bin/aplay /usr/share/sounds/startup3.wav
>
>With the above fixes, the --system option works properly when root
>starts pulseaudio, extending to all users the full use of the sound
>system.  The last line confirms proper behaviour.
>
>When xfce is started all users inherit the ability to run aplay and
>other X sound programs such as xmms.  Any console user can use aplay.
>Crontab entries of any user can use aplay.
>
>I simply cannot comprehend why Fedora 8 starts the pulseaudio daemon as
>a gnome task.  With the above fixes, it is perfectly possible to start
>it in /etc/rc.d/rc.local.  With only a bit more effort, it should be
>possible to come up with a simple startup script in /etc/init.d so that
>this daemon is treated the same as any other proper Linux daemon.
>

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Attachments on bug 388971: 262541