My sound works but stops working after some hours or so, works again after killing pulseaudio and start the daeamon manually Now after the weekend the sound on my workstation has stopped working again after just being idle for two days matwad@yoggi:~$ pactl stat Connection failure: Connection refused matwad@yoggi:~$ ps ax|grep pulseaudio 29548 ? Tl 98:22 /usr/bin/pulseaudio matwad@yoggi:~$ sudo lsof -p 29548 [sudo] password for matwad: lsof: WARNING: can't stat() fuse.gvfs-fuse-daemon file system /home/matwad/.gvfs Output information may be incomplete. COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME pulseaudi 29548 matwad cwd DIR 8,6 4096 2 / pulseaudi 29548 matwad rtd DIR 8,6 4096 2 / pulseaudi 29548 matwad txt REG 8,6 59300 2305739 /usr/bin/pulseaudio pulseaudi 29548 matwad mem REG 0,21 2097176 801854 /dev/shm/pulse-shm-902027447 pulseaudi 29548 matwad mem REG 0,21 2097176 887012 /dev/shm/pulse-shm-813528732 pulseaudi 29548 matwad mem REG 8,6 16628 2306106 /usr/lib/libXdmcp.so.6.0.0 pulseaudi 29548 matwad mem REG 8,6 7408 2306030 /usr/lib/libXau.so.6.0.0 pulseaudi 29548 matwad mem REG 8,6 95676 2306704 /usr/lib/libxcb.so.1.0.0 pulseaudi 29548 matwad mem REG 8,6 5364 2307717 /usr/lib/libxcb-xlib.so.0.0.0 pulseaudi 29548 matwad mem REG 8,6 971436 2308063 /usr/lib/libX11.so.6.2.0 pulseaudi 29548 matwad mem REG 8,6 86160 2305655 /usr/lib/libICE.so.6.3.0 pulseaudi 29548 matwad mem REG 8,6 30064 2307013 /usr/lib/libSM.so.6.0.0 pulseaudi 29548 matwad mem REG 8,6 5296 3237873 /usr/lib/pulse-0.9/modules/libx11prop.so pulseaudi 29548 matwad mem REG 8,6 13576 3237877 /usr/lib/pulse-0.9/modules/libx11wrap.so pulseaudi 29548 matwad mem REG 8,6 9588 3237881 /usr/lib/pulse-0.9/modules/module-x11-publish.so pulseaudi 29548 matwad mem REG 8,6 17772 3237777 /usr/lib/pulse-0.9/modules/module-suspend-on-idle.so pulseaudi 29548 matwad mem REG 8,6 9480 3237769 /usr/lib/pulse-0.9/modules/module-rescue-streams.so pulseaudi 29548 matwad mem REG 8,6 9476 3237753 /usr/lib/pulse-0.9/modules/module-default-device-restore.so pulseaudi 29548 matwad mem REG 8,6 17836 3237778 /usr/lib/pulse-0.9/modules/module-volume-restore.so pulseaudi 29548 matwad mem REG 8,6 5364 3237745 /usr/lib/pulse-0.9/modules/libstrlist.so pulseaudi 29548 matwad mem REG 8,6 9448 3237709 /usr/lib/pulse-0.9/modules/libauthkey-prop.so pulseaudi 29548 matwad mem REG 8,6 17636 3237746 /usr/lib/pulse-0.9/modules/libtagstruct.so pulseaudi 29548 matwad mem REG 8,6 92204 3237737 /usr/lib/pulse-0.9/modules/libprotocol-native.so pulseaudi 29548 matwad mem REG 8,6 9476 3237744 /usr/lib/pulse-0.9/modules/libsocket-util.so pulseaudi 29548 matwad mem REG 8,6 30960 2338409 /lib/libwrap.so.0.7.6 pulseaudi 29548 matwad mem REG 8,6 13560 3237734 /usr/lib/pulse-0.9/modules/libpdispatch.so pulseaudi 29548 matwad mem REG 8,6 5332 3237722 /usr/lib/pulse-0.9/modules/libpacket.so pulseaudi 29548 matwad mem REG 8,6 21876 3237740 /usr/lib/pulse-0.9/modules/libpstream.so pulseaudi 29548 matwad mem REG 8,6 9544 3237763 /usr/lib/pulse-0.9/modules/module-native-protocol-unix.so pulseaudi 29548 matwad mem REG 8,6 17688 3237713 /usr/lib/pulse-0.9/modules/libiochannel.so pulseaudi 29548 matwad mem REG 8,6 17732 3237743 /usr/lib/pulse-0.9/modules/libsocket-server.so pulseaudi 29548 matwad mem REG 8,6 9452 3237717 /usr/lib/pulse-0.9/modules/libipacl.so pulseaudi 29548 matwad mem REG 8,6 42880 3237782 /usr/lib/pulse-0.9/modules/libprotocol-esound.so pulseaudi 29548 matwad mem REG 8,6 813216 2309572 /usr/lib/libasound.so.2.0.0 pulseaudi 29548 matwad mem REG 8,6 5352 3237739 /usr/lib/pulse-0.9/modules/libpstream-util.so pulseaudi 29548 matwad mem REG 8,6 9472 3237710 /usr/lib/pulse-0.9/modules/libauthkey.so pulseaudi 29548 matwad mem REG 8,6 9564 3237786 /usr/lib/pulse-0.9/modules/module-esound-protocol-unix.so pulseaudi 29548 matwad mem REG 8,6 30364 3237748 /usr/lib/pulse-0.9/modules/module-alsa-source.so pulseaudi 29548 matwad mem REG 8,6 66940 2307161 /usr/lib/libhal.so.1.0.0 pulseaudi 29548 matwad mem CHR 116,4 12984 /dev/snd/pcmC0D0p pulseaudi 29548 matwad mem REG 8,6 30368 3237747 /usr/lib/pulse-0.9/modules/module-alsa-sink.so pulseaudi 29548 matwad mem REG 0,21 2097176 798423 /dev/shm/pulse-shm-132273082 pulseaudi 29548 matwad mem REG 8,6 42508 2371172 /lib/tls/i686/cmov/libnss_files-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 38448 2371176 /lib/tls/i686/cmov/libnss_nis-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 87804 2371121 /lib/tls/i686/cmov/libnsl-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 30436 2371122 /lib/tls/i686/cmov/libnss_compat-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 26068 3237708 /usr/lib/pulse-0.9/modules/libalsa-util.so pulseaudi 29548 matwad mem REG 8,6 13684 3237867 /usr/lib/pulse-0.9/modules/libdbus-util.so pulseaudi 29548 matwad mem REG 8,6 22012 3237869 /usr/lib/pulse-0.9/modules/module-hal-detect.so pulseaudi 29548 matwad mem REG 8,6 254076 2404108 /usr/lib/locale/en_US.utf8/LC_CTYPE pulseaudi 29548 matwad mem REG 8,6 921214 2404109 /usr/lib/locale/en_US.utf8/LC_COLLATE pulseaudi 29548 matwad mem REG 8,6 152908 2305811 /usr/lib/libexpat.so.1.5.2 pulseaudi 29548 matwad mem REG 8,6 99972 2338441 /lib/libselinux.so.1 pulseaudi 29548 matwad mem REG 8,6 1425800 2371095 /lib/tls/i686/cmov/libc-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 116457 2371179 /lib/tls/i686/cmov/libpthread-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 149332 2371099 /lib/tls/i686/cmov/libm-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 9676 2371098 /lib/tls/i686/cmov/libdl-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 34720 2371181 /lib/tls/i686/cmov/librt-2.8.90.so pulseaudi 29548 matwad mem REG 8,6 10316 2338379 /lib/libcap.so.1.10 pulseaudi 29548 matwad mem REG 8,6 222816 2534612 /lib/libdbus-1.so.3.4.0 pulseaudi 29548 matwad mem REG 8,6 91756 2306085 /usr/lib/libpolkit.so.2.0.0 pulseaudi 29548 matwad mem REG 8,6 46800 2306229 /usr/lib/libpolkit-dbus.so.2.0.0 pulseaudi 29548 matwad mem REG 8,6 440756 1439099 /usr/lib/liboil-0.3.so.0.3.0 pulseaudi 29548 matwad mem REG 8,6 17628 2305714 /usr/lib/libogg.so.0.5.3 pulseaudi 29548 matwad mem REG 8,6 334440 1439122 /usr/lib/libFLAC.so.8.2.0 pulseaudi 29548 matwad mem REG 8,6 357520 2307642 /usr/lib/libsndfile.so.1.0.17 pulseaudi 29548 matwad mem REG 8,6 1475868 2306322 /usr/lib/libsamplerate.so.0.1.3 pulseaudi 29548 matwad mem REG 8,6 30104 2308602 /usr/lib/libltdl.so.7.1.2 pulseaudi 29548 matwad mem REG 8,6 492440 2306737 /usr/lib/libpulsecore.so.5.0.1 pulseaudi 29548 matwad mem REG 8,6 54 2404527 /usr/lib/locale/en_US.utf8/LC_NUMERIC pulseaudi 29548 matwad mem REG 8,6 2451 2404329 /usr/lib/locale/en_US.utf8/LC_TIME pulseaudi 29548 matwad mem REG 8,6 286 2404330 /usr/lib/locale/en_US.utf8/LC_MONETARY pulseaudi 29548 matwad mem REG 8,6 52 2420113 /usr/lib/locale/en_US.utf8/LC_MESSAGES/SYS_LC_MESSAGES pulseaudi 29548 matwad mem REG 8,6 34 2404517 /usr/lib/locale/en_US.utf8/LC_PAPER pulseaudi 29548 matwad mem REG 8,6 77 2404515 /usr/lib/locale/en_US.utf8/LC_NAME pulseaudi 29548 matwad mem REG 8,6 155 2404331 /usr/lib/locale/en_US.utf8/LC_ADDRESS pulseaudi 29548 matwad mem REG 8,6 59 2404332 /usr/lib/locale/en_US.utf8/LC_TELEPHONE pulseaudi 29548 matwad mem REG 8,6 23 2404333 /usr/lib/locale/en_US.utf8/LC_MEASUREMENT pulseaudi 29548 matwad mem REG 8,6 26040 2322751 /usr/lib/gconv/gconv-modules.cache pulseaudi 29548 matwad mem REG 8,6 373 2404335 /usr/lib/locale/en_US.utf8/LC_IDENTIFICATION pulseaudi 29548 matwad mem REG 8,6 113252 2535370 /lib/ld-2.8.90.so pulseaudi 29548 matwad 0u CHR 136,8 10 /dev/pts/8 (deleted) pulseaudi 29548 matwad 1u CHR 136,8 10 /dev/pts/8 (deleted) pulseaudi 29548 matwad 2u CHR 136,8 10 /dev/pts/8 (deleted) pulseaudi 29548 matwad 3u unix 0xf5374800 798402 socket pulseaudi 29548 matwad 4r FIFO 0,6 798422 pipe pulseaudi 29548 matwad 5w FIFO 0,6 798422 pipe pulseaudi 29548 matwad 6r FIFO 0,6 798424 pipe pulseaudi 29548 matwad 7w FIFO 0,6 798424 pipe pulseaudi 29548 matwad 8r FIFO 0,6 798425 pipe pulseaudi 29548 matwad 9w FIFO 0,6 798425 pipe pulseaudi 29548 matwad 10u unix 0xf4ab9800 887009 /tmp/pulse-matwad/native pulseaudi 29548 matwad 11u unix 0xf5377a00 798426 socket pulseaudi 29548 matwad 12u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 13u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 14u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 15u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 16u unix 0xf4aba200 887014 /tmp/pulse-matwad/native pulseaudi 29548 matwad 17u CHR 116,6 13010 /dev/snd/controlC0 pulseaudi 29548 matwad 18u CHR 116,6 13010 /dev/snd/controlC0 pulseaudi 29548 matwad 19u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 20u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 21u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 22u 0000 0,7 0 29 anon_inode pulseaudi 29548 matwad 23u CHR 116,4 12984 /dev/snd/pcmC0D0p pulseaudi 29548 matwad 24u unix 0xeea83e00 801856 /tmp/pulse-matwad/native pulseaudi 29548 matwad 25u CHR 116,6 13010 /dev/snd/controlC0 pulseaudi 29548 matwad 26u unix 0xf51e8200 798429 /tmp/.esd-2056/socket pulseaudi 29548 matwad 27u unix 0xf51e8c00 798433 /tmp/pulse-matwad/native pulseaudi 29548 matwad 29u unix 0xf5376600 798481 socket (gdb) bt #0 0xb80de430 in __kernel_vsyscall () #1 0xb7cfb405 in sem_wait@@GLIBC_2.1 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb8097a38 in pa_semaphore_wait () from /usr/lib/libpulsecore.so.5 #3 0xb808ef6d in pa_asyncmsgq_send () from /usr/lib/libpulsecore.so.5 #4 0xb6698722 in ?? () from /usr/lib/pulse-0.9/modules/libprotocol-native.so #5 0xb66afa99 in pa_pdispatch_run () from /usr/lib/pulse-0.9/modules/libpdispatch.so #6 0xb66921b2 in ?? () from /usr/lib/pulse-0.9/modules/libprotocol-native.so #7 0xb66b902b in ?? () from /usr/lib/pulse-0.9/modules/libpstream.so #8 0xb66c2488 in ?? () from /usr/lib/pulse-0.9/modules/libiochannel.so #9 0xb8044d49 in pa_mainloop_dispatch () from /usr/lib/libpulsecore.so.5 #10 0xb80450a1 in pa_mainloop_iterate () from /usr/lib/libpulsecore.so.5 #11 0xb8045164 in pa_mainloop_run () from /usr/lib/libpulsecore.so.5 #12 0x0805118d in main () (gdb) th thbreak thread (gdb) thread 2 [Switching to thread 2 (Thread 0xb6edcb90 (LWP 29551))]#0 0xb80de430 in __kernel_vsyscall () (gdb) bt #0 0xb80de430 in __kernel_vsyscall () #1 0xb7c681b4 in ppoll () from /lib/tls/i686/cmov/libc.so.6 #2 0xb8093cee in pa_rtpoll_run () from /usr/lib/libpulsecore.so.5 #3 0xb77b5a43 in ?? () from /usr/lib/pulse-0.9/modules/module-alsa-source.so #4 0xb8097842 in ?? () from /usr/lib/libpulsecore.so.5 #5 0xb7cf550f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #6 0xb7c727ee in clone () from /lib/tls/i686/cmov/libc.so.6 (gdb) th thbreak thread (gdb) thread 3 [Switching to thread 3 (Thread 0xb76ddb90 (LWP 29550))]#0 0xb80de430 in __kernel_vsyscall () (gdb) bt #0 0xb80de430 in __kernel_vsyscall () #1 0xb7cfc10b in read () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb8090f83 in pa_fdsem_wait () from /usr/lib/libpulsecore.so.5 #3 0xb80900a3 in pa_asyncq_push () from /usr/lib/libpulsecore.so.5 #4 0xb808f6c1 in pa_asyncmsgq_post () from /usr/lib/libpulsecore.so.5 #5 0xb668dbca in ?? () from /usr/lib/pulse-0.9/modules/libprotocol-native.so #6 0xb66b86aa in ?? () from /usr/lib/pulse-0.9/modules/libpstream.so #7 0xb8062381 in pa_memblock_unref () from /usr/lib/libpulsecore.so.5 #8 0xb808ecc5 in pa_asyncmsgq_done () from /usr/lib/libpulsecore.so.5 #9 0xb809287f in ?? () from /usr/lib/libpulsecore.so.5 #10 0xb8093c04 in pa_rtpoll_run () from /usr/lib/libpulsecore.so.5 #11 0xb77dbbb5 in ?? () from /usr/lib/pulse-0.9/modules/module-alsa-sink.so #12 0xb8097842 in ?? () from /usr/lib/libpulsecore.so.5 #13 0xb7cf550f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #14 0xb7c727ee in clone () from /lib/tls/i686/cmov/libc.so.6 (gdb) matwad@yoggi:~$ sudo strace -p 29548 Process 29548 attached - interrupt to quit --- SIGSTOP (Stopped (signal)) @ 0 (0) --- --- SIGSTOP (Stopped (signal)) @ 0 (0) --- futex(0x99d68b8, 0x80 /* FUTEX_??? */, 0^C Process 29548 detached matwad@yoggi:~$ sudo strace -f -p 29548 Process 29551 attached with 3 threads - interrupt to quit [pid 29551] --- SIGSTOP (Stopped (signal)) @ 0 (0) --- [pid 29551] --- SIGSTOP (Stopped (signal)) @ 0 (0) --- [pid 29551] ppoll( [pid 29550] --- SIGSTOP (Stopped (signal)) @ 0 (0) --- [pid 29551] <... ppoll resumed> [{fd=20, events=POLLIN}], 1, {...}, [], 8) = ? ERESTARTNOHAND (To be restarted) [pid 29551] ppoll( [pid 29550] --- SIGSTOP (Stopped (signal)) @ 0 (0) --- [pid 29550] read(14, [pid 29548] futex(0x99d68b8, 0x80 /* FUTEX_??? */, 0