I guess route plugin used by RME96*.conf does not support mmap when there is channel conversion since minimum channels supported by hdsp is 14

static struct snd_pcm_hardware snd_hdsp_playback_subinfo = { .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_NONINTERLEAVED | SNDRV_PCM_INFO_SYNC_START | SNDRV_PCM_INFO_DOUBLE), #ifdef SNDRV_BIG_ENDIAN .formats = SNDRV_PCM_FMTBIT_S32_BE, #else .formats = SNDRV_PCM_FMTBIT_S32_LE, #endif .rates = (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000), .rate_min = 32000, .rate_max = 96000, .channels_min = 14, .channels_max = HDSP_MAX_CHANNELS, .buffer_bytes_max = HDSP_CHANNEL_BUFFER_BYTES * HDSP_MAX_CHANNELS, .period_bytes_min = (64 * 4) * 10, .period_bytes_max = (8192 * 4) * HDSP_MAX_CHANNELS, .periods_min = 2, .periods_max = 2, .fifo_size = 0 };

2009/11/2 Lars Zobbe fedesensfar@gmail.com

Hi.

Talking to one of the pulseaudio developers (*Colin Guthrie*) about a problem with pulseaudio loading modules and my sound card (RME HDSP 9632), I was adviced to inform you about the problem.

I'm on ubuntu 9.10, 64bit, kernel 2.6.31 with an amd64 x2 3800+ processor.

Symptoms are: Can only make pulseaudio load modules with the deprecated load-module module-detect command, module-udev-detect doesn't detect anything (no sound

• only null sink output in padevchooser).

I get terrible stuttering. I can remove pulseaudio and make things work, more or less. However, that leaves me without software mixing and apps fighting for the rights to make sound. And more inconveniences (fx. no volume-control). I can play sound from audacity without stuttering by choosing the cardname directly in output HDSP, not ALSA, not pulseaudio.

When trying to run alsa-info.sh I get a lot of "not found" errors. So you'll get some manual info (they might have moved som files around in ubuntu 9.10).

This is part of my syslog during a boot. (I did the formatting to bold).

Nov 2 10:57:32 lars-desktop pulseaudio[1524]: module.c: module-detect is deprecated: Please use module-udev-detect instead of module-detect! Nov 2 10:57:37 lars-desktop pulseaudio[1524]: ratelimit.c: 27 events suppressed Nov 2 10:57:39 lars-desktop pulseaudio[1612]: module.c: module-detect is deprecated: Please use module-udev-detect instead of module-detect! Nov 2 10:57:44 lars-desktop pulseaudio[1612]: ratelimit.c: 23 events suppressed Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write! Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: *Most likely this is a bug in the ALSA driver 'snd_hdsp'. Please report this issue to the ALSA developers.* Nov 2 10:57:44 lars-desktop pulseaudio[1612]: alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. Nov 2 10:57:49 lars-desktop pulseaudio[1612]: ratelimit.c: 99 events suppressed

Later if I try to play audio I get terrible skipping or stuttering and my syslog (in less than a minute) writes: Nov 2 11:55:16 lars-desktop pulseaudio[1612]: ratelimit.c: 16 events suppressed Nov 2 11:55:21 lars-desktop pulseaudio[1612]: ratelimit.c: 34 events suppressed Nov 2 11:55:26 lars-desktop pulseaudio[1612]: ratelimit.c: 70 events suppressed Nov 2 11:55:31 lars-desktop pulseaudio[1612]: ratelimit.c: 29 events suppressed Nov 2 11:55:36 lars-desktop pulseaudio[1612]: ratelimit.c: 43 events suppressed Nov 2 11:55:41 lars-desktop pulseaudio[1612]: ratelimit.c: 161 events suppressed Nov 2 11:55:46 lars-desktop pulseaudio[1612]: ratelimit.c: 28 events suppressed Nov 2 11:55:51 lars-desktop pulseaudio[1612]: ratelimit.c: 18 events suppressed Nov 2 11:55:56 lars-desktop pulseaudio[1612]: ratelimit.c: 16 events suppressed

Here's the relevant part (concerning my sound card) of lspci -vvv

02:09.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall DSP (rev 9a) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 255 Interrupt: pin A routed to IRQ 19 Region 0: Memory at fdff0000 (32-bit, non-prefetchable) [size=64K] Kernel driver in use: RME Hammerfall DSP Kernel modules: snd-hdsp

And: lars@lars-desktop:~$ aplay -l **** List of PLAYBACK Hardware Devices **** card 0: DSP [Hammerfall DSP], device 0: RME Hammerfall HDSP 9632 [RME Hammerfall HDSP 9632] Subdevices: 1/1 Subdevice #0: subdevice #0

lars@lars-desktop:~$ cat /proc/asound/version Advanced Linux Sound Architecture Driver Version 1.0.21. Compiled on Oct 15 2009 for kernel 2.6.31-14-generic (SMP).

lars@lars-desktop:~$ cat /proc/asound/cards 0 [DSP ]: H-DSP - Hammerfall DSP RME Hammerfall HDSP 9632 at 0xfdff0000, irq 19

lars@lars-desktop:~$ cat /proc/asound/modules 0 snd_hdsp

I don't have .asound.conf files.

lars@lars-desktop:~$ hdsploader hdsploader - firmware loader for RME Hammerfall DSP cards Looking for HDSP + Multiface or Digiface cards : Card 0 : RME Hammerfall HDSP 9632 at 0xfdff0000, irq 19

And of course. My computer makes no sound if I don't load the hdspmixer at startup. I guess that's just normal for this card though.

Please let me know, if you need more info. I really hope you can help out here. And that this might help you to.

Thanks for the great work you do. Greetings. Lars Zobbe. _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel