私はクレメンタインを使用していますが、昨日は何もすることを拒否し、「アクセス拒否」警告ボックスを表示するようになりました。Rhythmboxでも同じです。しばらくして、サウンド表示もグレーになり、サウンド設定にサウンドカードが表示されないことに気付きました。
私が考える Pulseaudioのは、犯人が、そこには確信（下記の出力を参照）であること。私は13.04にいますが、何かがうまくいきませんでしたが、きれいな設定で再起動する方法や、何か変更する必要がある場合は表示されません。
lionel@prime:~$ pulseaudio -vvvv
I: [pulseaudio] main.c: setrlimit(RLIMIT_NICE, (31, 31)) failed: Operation not permitted
I: [pulseaudio] main.c: setrlimit(RLIMIT_RTPRIO, (9, 9)) failed: Operation not permitted
D: [pulseaudio] core-rtclock.c: Timer slack is set to 50 us.
D: [pulseaudio] core-util.c: RealtimeKit worked.
I: [pulseaudio] core-util.c: Successfully gained nice level -11.
I: [pulseaudio] main.c: This is PulseAudio 3.0
D: [pulseaudio] main.c: Compilation host: x86_64-pc-linux-gnu
D: [pulseaudio] main.c: Compilation CFLAGS: -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -W -Wextra -pipe -Wno-long-long -Wno-overlength-strings -Wunsafe-loop-optimizations -Wundef -Wformat=2 -Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs -Wformat-nonliteral -Wpointer-arith -Winit-self -Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes -Wredundant-decls -Wmissing-declarations -Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align -Wstrict-aliasing -Wwrite-strings -Wno-unused-parameter -ffast-math -Wp,-D_FORTIFY_SOURCE=2 -fno-common -fdiagnostics-show-option
D: [pulseaudio] main.c: Running on host: Linux x86_64 3.8.0-29-generic #42-Ubuntu SMP Tue Aug 13 19:40:39 UTC 2013
D: [pulseaudio] main.c: Found 8 CPUs.
I: [pulseaudio] main.c: Page size is 4096 bytes
D: [pulseaudio] main.c: Compiled with Valgrind support: no
D: [pulseaudio] main.c: Running in valgrind mode: no
D: [pulseaudio] main.c: Running in VM: no
D: [pulseaudio] main.c: Optimized build: yes
D: [pulseaudio] main.c: FASTPATH defined, only fast path asserts disabled.
I: [pulseaudio] main.c: Machine ID is 77bf4823eb9fbd64b69d605100000002.
I: [pulseaudio] main.c: Using runtime directory /run/user/lionel/pulse.
E: [pulseaudio] core-util.c: Home directory not accessible: Permission denied
出力に含まls -l /run/user/lionel/とpulseaudio --dump-conf
lionel@prime:~$ ls -l /run/user/lionel/
total 0
drwx------ 2 lionel lionel 60 août 28 15:15 dconf
dr-x------ 2 lionel lionel 0 août 28 12:30 gvfs
drwx------ 2 lionel lionel 40 août 28 12:30 gvfs-burn
drwx------ 2 lionel lionel 120 août 28 12:30 keyring-iiUWPh
drwx------ 2 lionel lionel 40 août 28 15:11 pulse
lionel@prime:~$ pulseaudio --dump-conf
### Read from configuration file: /etc/pulse/daemon.conf ###
daemonize = no
fail = yes
high-priority = yes
nice-level = -11
realtime-scheduling = yes
realtime-priority = 5
allow-module-loading = yes
allow-exit = yes
use-pid-file = yes
system-instance = no
local-server-type = user
cpu-limit = no
enable-shm = yes
flat-volumes = no
lock-memory = no
exit-idle-time = 20
scache-idle-time = 20
dl-search-path = /usr/lib/pulse-3.0/modules
default-script-file = /etc/pulse/default.pa
load-default-script-file = yes
log-target = auto
log-level = notice
resample-method = speex-float-1
enable-remixing = yes
enable-lfe-remixing = no
default-sample-format = s16le
default-sample-rate = 44100
alternate-sample-rate = 48000
default-sample-channels = 2
default-channel-map = front-left,front-right
default-fragments = 8
default-fragment-size-msec = 10
enable-deferred-volume = yes
deferred-volume-safety-margin-usec = 1
deferred-volume-extra-delay-usec = 0
shm-size-bytes = 0
log-meta = no
log-time = no
log-backtrace = 0
rlimit-fsize = -1
rlimit-data = -1
rlimit-stack = -1
rlimit-core = -1
rlimit-rss = -1
rlimit-as = -1
rlimit-nproc = -1
rlimit-nofile = 256
rlimit-memlock = -1
rlimit-locks = -1
rlimit-sigpending = -1
rlimit-msgqueue = -1
rlimit-nice = 31
rlimit-rtprio = 9
rlimit-rttime = 1000000
出力を追加しました。
—
ライオネルバレット
ls -l /run/user/lionel/してpulseaudio --dump-conf。