Here's what gdb has to say about that core dump: Core was generated by `speaker-test -Da52:CARD=PCH -c6'. Program terminated with signal 8, Arithmetic exception. #0 0x00007fb3cef10a57 in av_samples_get_buffer_size () from /usr/lib/x86_64-linux-gnu/libavutil.so.51
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1242390 Title: ac-53 (a52 plugin) core dumps Status in “pulseaudio” package in Ubuntu: Confirmed Bug description: This config worked on 13.04 a52.conf: pcm.a52 { @args [CARD] @args.CARD { type string } type rate slave { pcm { type a52 bitrate 448 channels 6 card $CARD } # rate 48000 #required somehow, otherwise nothing happens in PulseAudio } } commenting out rate 48000 allows it to work, but stereo only; no surround. End of debug logging for pulseaudio from the command line: D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-stereo+input:analog-stereo D: [pulseaudio] alsa-mixer.c: Checking for recording on Analog Stereo (analog-stereo) D: [pulseaudio] alsa-util.c: Trying front:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open front:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 371 ms D: [pulseaudio] alsa-util.c: Set buffer size first (to 3528 samples), period size second (to 441 samples). D: [pulseaudio] alsa-mixer.c: Profile output:iec958-stereo+input:analog-stereo supported. D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-stereo+input:iec958-stereo D: [pulseaudio] alsa-mixer.c: Checking for recording on Digital Stereo (IEC958) (iec958-stereo) D: [pulseaudio] alsa-util.c: Trying iec958:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open iec958:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 371 ms D: [pulseaudio] alsa-util.c: Set buffer size first (to 3528 samples), period size second (to 441 samples). D: [pulseaudio] alsa-mixer.c: Profile output:iec958-stereo+input:iec958-stereo supported. D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Checking for playback on Digital Surround 4.0 (IEC958/AC3) (iec958-ac3-surround-40) D: [pulseaudio] alsa-util.c: Trying a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying a52:0 without SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying plug:a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open plug:a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying plug:a52:0 without SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open plug:a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument I: [pulseaudio] alsa-util.c: Failed to set hardware parameters on plug:a52:0: Invalid argument D: [pulseaudio] alsa-mixer.c: Caching failure to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:analog-mono - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:analog-stereo - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:iec958-stereo - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-ac3-surround-51 D: [pulseaudio] alsa-mixer.c: Checking for playback on Digital Surround 5.1 (IEC958/AC3) (iec958-ac3-surround-51) D: [pulseaudio] alsa-util.c: Trying a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 320 ms Floating point exception (core dumped) D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-stereo+input:analog-stereo D: [pulseaudio] alsa-mixer.c: Checking for recording on Analog Stereo (analog-stereo) D: [pulseaudio] alsa-util.c: Trying front:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open front:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 371 ms D: [pulseaudio] alsa-util.c: Set buffer size first (to 3528 samples), period size second (to 441 samples). D: [pulseaudio] alsa-mixer.c: Profile output:iec958-stereo+input:analog-stereo supported. D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-stereo+input:iec958-stereo D: [pulseaudio] alsa-mixer.c: Checking for recording on Digital Stereo (IEC958) (iec958-stereo) D: [pulseaudio] alsa-util.c: Trying iec958:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open iec958:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 371 ms D: [pulseaudio] alsa-util.c: Set buffer size first (to 3528 samples), period size second (to 441 samples). D: [pulseaudio] alsa-mixer.c: Profile output:iec958-stereo+input:iec958-stereo supported. D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Checking for playback on Digital Surround 4.0 (IEC958/AC3) (iec958-ac3-surround-40) D: [pulseaudio] alsa-util.c: Trying a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying a52:0 without SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying plug:a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open plug:a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying plug:a52:0 without SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open plug:a52:0 D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_channels(4) failed: Invalid argument I: [pulseaudio] alsa-util.c: Failed to set hardware parameters on plug:a52:0: Invalid argument D: [pulseaudio] alsa-mixer.c: Caching failure to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:analog-mono - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:analog-stereo - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Skipping profile output:iec958-ac3-surround-40+input:iec958-stereo - will not be able to open output:iec958-ac3-surround-40 D: [pulseaudio] alsa-mixer.c: Looking at profile output:iec958-ac3-surround-51 D: [pulseaudio] alsa-mixer.c: Checking for playback on Digital Surround 5.1 (IEC958/AC3) (iec958-ac3-surround-51) D: [pulseaudio] alsa-util.c: Trying a52:0 with SND_PCM_NO_AUTO_FORMAT ... D: [pulseaudio] alsa-util.c: Managed to open a52:0 D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 320 ms Floating point exception (core dumped) ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: pulseaudio 1:4.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3 Uname: Linux 3.11.0-12-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.12.5-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: guest 1459 F.... pulseaudio guest 1473 F.... panel-5-mixer /dev/snd/pcmC0D1p: guest 1459 F...m pulseaudio CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied Date: Sun Oct 20 12:55:51 2013 InstallationDate: Installed on 2013-05-22 (151 days ago) InstallationMedia: Xubuntu 13.04 "Raring Ringtail" - Release amd64 (20130423.1) MarkForUpload: True SourcePackage: pulseaudio UpgradeStatus: Upgraded to saucy on 2013-10-18 (1 days ago) dmi.bios.date: 07/02/2010 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F5 dmi.board.name: M68M-S2P dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF5:bd07/02/2010:svnGigabyteTechnologyCo.,Ltd.:pnM68M-S2P:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnM68M-S2P:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: M68M-S2P dmi.sys.vendor: Gigabyte Technology Co., Ltd. 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