After a system update to Fedora 18, I have no sound output :( This is with pulseaudio-2.1. The sound did work on Fedora 17, which uses the same kernel version (3.6.10). However, Fedora 17 was using pulseaudio-1.1, so it seems to be the upgrade to v2.1 that broke this. The daemon starts OK but crashes with this error as soon as I play a sound: [alsa-sink] sink.c: Assertion 'max_latency <= (10*((pa_usec_t) 1000000ULL))' failed at pulsecore/sink.c:3148, function pa_sink_set_latency_range_within_thread(). Aborting. Pulseaudio is also notably a bit unhappy about some ALSA oddness (exceptionally large values). It might be related. That does probably indicate a kernel bug, but given that pulse did work with the same kernel in version v1.1, I'd hope that things could be kept working for newer releases. I have tried updating to kernel 3.7.1 and pulseaudio-3.0, unfortunately the problem is still there. Full log of alsa unhappiness: E: [alsa-sink] alsa-util.c: snd_pcm_avail() returned a value that is exceptionally large: 3528320 bytes (10000 ms). E: [alsa-sink] alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. E: [alsa-sink] alsa-util.c: snd_pcm_dump(): E: [alsa-sink] alsa-util.c: Soft volume PCM E: [alsa-sink] alsa-util.c: Control: PCM Playback Volume E: [alsa-sink] alsa-util.c: min_dB: -51 E: [alsa-sink] alsa-util.c: max_dB: 0 E: [alsa-sink] alsa-util.c: resolution: 256 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: Slave: Hardware PCM card 0 'HDA NVidia' device 0 subdevice 0 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: appl_ptr : 0 E: [alsa-sink] alsa-util.c: hw_ptr : 0 E: [alsa-sink] alsa-util.c: snd_pcm_mmap_begin() returned a value that is exceptionally large: 3528320 bytes (10000 ms). E: [alsa-sink] alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. E: [alsa-sink] alsa-util.c: snd_pcm_dump(): E: [alsa-sink] alsa-util.c: Soft volume PCM E: [alsa-sink] alsa-util.c: Control: PCM Playback Volume E: [alsa-sink] alsa-util.c: min_dB: -51 E: [alsa-sink] alsa-util.c: max_dB: 0 E: [alsa-sink] alsa-util.c: resolution: 256 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: Slave: Hardware PCM card 0 'HDA NVidia' device 0 subdevice 0 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: appl_ptr : 0 E: [alsa-sink] alsa-util.c: hw_ptr : 0 E: [alsa-sink] alsa-util.c: snd_pcm_delay() returned a value that is exceptionally large: 3528320 bytes (10000 ms). E: [alsa-sink] alsa-util.c: Most likely this is a bug in the ALSA driver 'snd_hda_intel'. Please report this issue to the ALSA developers. E: [alsa-sink] alsa-util.c: snd_pcm_dump(): E: [alsa-sink] alsa-util.c: Soft volume PCM E: [alsa-sink] alsa-util.c: Control: PCM Playback Volume E: [alsa-sink] alsa-util.c: min_dB: -51 E: [alsa-sink] alsa-util.c: max_dB: 0 E: [alsa-sink] alsa-util.c: resolution: 256 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: Slave: Hardware PCM card 0 'HDA NVidia' device 0 subdevice 0 E: [alsa-sink] alsa-util.c: Its setup is: E: [alsa-sink] alsa-util.c: stream : PLAYBACK E: [alsa-sink] alsa-util.c: access : MMAP_INTERLEAVED E: [alsa-sink] alsa-util.c: format : S16_LE E: [alsa-sink] alsa-util.c: subformat : STD E: [alsa-sink] alsa-util.c: channels : 4 E: [alsa-sink] alsa-util.c: rate : 44100 E: [alsa-sink] alsa-util.c: exact rate : 44100 (44100/1) E: [alsa-sink] alsa-util.c: msbits : 16 E: [alsa-sink] alsa-util.c: buffer_size : 441040 E: [alsa-sink] alsa-util.c: period_size : 88208 E: [alsa-sink] alsa-util.c: period_time : 2000181 E: [alsa-sink] alsa-util.c: tstamp_mode : ENABLE E: [alsa-sink] alsa-util.c: period_step : 1 E: [alsa-sink] alsa-util.c: avail_min : 440599 E: [alsa-sink] alsa-util.c: period_event : 0 E: [alsa-sink] alsa-util.c: start_threshold : -1 E: [alsa-sink] alsa-util.c: stop_threshold : 1806499840 E: [alsa-sink] alsa-util.c: silence_threshold: 0 E: [alsa-sink] alsa-util.c: silence_size : 0 E: [alsa-sink] alsa-util.c: boundary : 1806499840 E: [alsa-sink] alsa-util.c: appl_ptr : 441040 E: [alsa-sink] alsa-util.c: hw_ptr : 0
you have to use "--log-timing" E: [alsa-sink] alsa-util.c: appl_ptr : 0 E: [alsa-sink] alsa-util.c: hw_ptr : 0 seem the alsa-driver still not start playing
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