On Mon, 21.04.08 08:58, Jaroslav Kysela (perex@perex.cz) wrote:
On Sun, 20 Apr 2008, Lennart Poettering wrote:
Hey!
On ALSA 1.0.16 with the HDA driver I am experiencing some weird things with snd_pcm_rewind() which I think are the result of a kernel bug, but I am not sure.
What alsa-lib plugins are on path? It looks like a rate plugin issue. Post also snd_pcm_dump() output. Driver does not do any alignment.
It's front:0. I don't think the rate plugin is used.
Device is being opened with SND_PCM_NO_AUTO_RESAMPLE|SND_PCM_NO_AUTO_CHANNELS|SND_PCM_NO_AUTO_FORMAT and snd_pcm_hw_params_set_rate_resample(..., 0).
That should get me only softvol, right?
The output of snd_pcm_dump() is here (please ignore the "D: alsa-util.c" prefix)
<snip> D: alsa-util.c: Soft volume PCM D: alsa-util.c: Control: PCM Playback Volume D: alsa-util.c: min_dB: -51 D: alsa-util.c: max_dB: 0 D: alsa-util.c: resolution: 256 D: alsa-util.c: Its setup is: D: alsa-util.c: stream : PLAYBACK D: alsa-util.c: access : MMAP_INTERLEAVED D: alsa-util.c: format : S16_LE D: alsa-util.c: subformat : STD D: alsa-util.c: channels : 2 D: alsa-util.c: rate : 44100 D: alsa-util.c: exact rate : 44100 (44100/1) D: alsa-util.c: msbits : 16 D: alsa-util.c: buffer_size : 16384 D: alsa-util.c: period_size : 8192 D: alsa-util.c: period_time : 185759 D: alsa-util.c: tstamp_mode : NONE D: alsa-util.c: period_step : 1 D: alsa-util.c: avail_min : 31001 D: alsa-util.c: start_threshold : -1 D: alsa-util.c: stop_threshold : -1 D: alsa-util.c: silence_threshold: 0 D: alsa-util.c: silence_size : 0 D: alsa-util.c: boundary : 4611686018427387904 D: alsa-util.c: Slave: Hardware PCM card 4 'HDA Intel' device 0 subdevice 0 D: alsa-util.c: Its setup is: D: alsa-util.c: stream : PLAYBACK D: alsa-util.c: access : MMAP_INTERLEAVED D: alsa-util.c: format : S16_LE D: alsa-util.c: subformat : STD D: alsa-util.c: channels : 2 D: alsa-util.c: rate : 44100 D: alsa-util.c: exact rate : 44100 (44100/1) D: alsa-util.c: msbits : 16 D: alsa-util.c: buffer_size : 16384 D: alsa-util.c: period_size : 8192 D: alsa-util.c: period_time : 185759 D: alsa-util.c: tstamp_mode : NONE D: alsa-util.c: period_step : 1 D: alsa-util.c: avail_min : 31001 D: alsa-util.c: start_threshold : -1 D: alsa-util.c: stop_threshold : -1 D: alsa-util.c: silence_threshold: 0 D: alsa-util.c: silence_size : 0 D: alsa-util.c: boundary : 4611686018427387904 </snip>
Lennart