Bug 434909

Description of problem:
Sometimes after suspend pulseaudio daemon stops working. This usually helps me:

killall pulseaudio
pulseaudio &

But sometimes I'm not able to start pulseaudio, because I get:

** (process:28819): WARNING **: Error doing GetSessionForUnixProcess on 
ConsoleKit: org.freedesktop.DBus.GLib.UnmappedError.CkManagerError.Code0: 
Unable to find session for cookie

** (process:28819): CRITICAL **: polkit_session_set_uid: assertion `session != 
NULL' failed
E: polkit.c: Cannot set UID on session object.
N: main.c: Called SUID root and real-time/high-priority scheduling was 
requested in the configuration. However, we lack the necessary priviliges:
N: main.c: We are not in group 'pulse-rt' and PolicyKit refuse to grant us 
priviliges. Dropping SUID again.
N: main.c: For enabling real-time scheduling please acquire the appropriate 
PolicyKit priviliges, or become a member of 'pulse-rt', or increase the 
RLIMIT_NICE/RLIMIT_RTPRIO resource limits for this user.
W: main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operace není povolena
W: main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operace není povolena
ALSA lib pcm_hw.c:1207:(_snd_pcm_hw_open) Invalid value for card
E: alsa-util.c: Error opening PCM device hw:0: Takové zařízení neexistuje
E: module.c: Failed to load  module "module-alsa-sink" (argument: 
"device=hw:0"): initialization failed.
ALSA lib pcm_hw.c:1207:(_snd_pcm_hw_open) Invalid value for card
E: alsa-util.c: Error opening PCM device hw:0: Takové zařízení neexistuje
E: module.c: Failed to load  module "module-alsa-source" (argument: 
"device=hw:0"): initialization failed.
E: oss-util.c: open('/dev/dsp'): Přístup odmítnut
E: module.c: Failed to load  module "module-oss" (argument: "device=/dev/dsp"): 
initialization failed.
W: module-detect.c: failed to detect any sound hardware.
E: module.c: Failed to load  module "module-detect" (argument: ""): 
initialization failed.
E: main.c: Module load failed.
E: main.c: failed to initialize daemon.
process 28819: dbus_shutdown() called but connections were still live. This 
probably means the application did not drop all its references to bus 
connections.
  D-Bus not built with -rdynamic so unable to print a backtrace

[1]+  Neúspěšně ukončen (SIGABRT)        pulseaudio

This is rights for /dev/dsp:

$ ls -al /dev/dsp
crw-rw----+ 1 root root 14, 3 2008-01-31 11:23 /dev/dsp


Version-Release number of selected component (if applicable):
pulseaudio-0.9.8-5.fc8.x86_64
PolicyKit-0.6-1.fc8.x86_64
ConsoleKit-0.2.3-1.fc8.x86_64
hal-0.5.10-1.fc8.x86_64
dbus-1.1.2-7.fc8.x86_64


How reproducible:
40%


Steps to Reproduce:
1. suspend & resume
2. check that pulseaudio is not accepting connections
3. killall pulseaudio
4. pulseaudio &


Actual results:
pulseaudio does not start


Expected results:
pulseaudio starts


Additional info:
 * sometimes, `service haldaemon restart` helps
 * this could be duplicate of bug 424621
 * this could be related to bug 427992
 * maybe this is PolicyKit/ConsoleKit/hal/dbus bug, but I have seen it with 
pulseaudio
 * if this is a problem with reconnection to dbus, then this could be related: 
http://lists4.suse.de/opensuse-bugs/2006-11/msg09254.html