New versions of Pulseaudio will be patched, but in the meantime, here
are the revised steps for Ubuntu Lucid 10.04 LTS:
1. Open from Pulse source code: src/modules/alsa/alsa-sink.c
2. Replace: pa_sink_set_max_rewind(u->sink, u->hwbuf_size); with:
if (pa_alsa_pcm_is_hw(u->pcm_handle)) {
pa_sink_set_max_rewind(u->sink, u->hwbuf_size);
} else {
pa_log("Disabling rewind for device %s", u->device_name);
pa_sink_set_max_rewind(u->sink, 0);
}
3. Replace: pa_sink_set_max_rewind_within_thread(u->sink, u->hwbuf_size);
with:
if (pa_alsa_pcm_is_hw(u->pcm_handle)) {
pa_sink_set_max_rewind_within_thread(u->sink, u->hwbuf_size);
} else {
pa_log("Disabling rewind_within_thread for device %s", u->device_name);
pa_sink_set_max_rewind_within_thread(u->sink, 0);
}
4. After line: if (PA_UNLIKELY((sframes = snd_pcm_mmap_commit(u->pcm_handle,
offset, frames)) < 0)) { add:
if (!after_avail && (int) sframes == -EAGAIN)
break;
5. Compile and install Pulseaudio with udev support
6. Copy /etc/pulse/daemon.conf to ~/.pulse/daemon.conf and ensure it has
uncommented: default-sample-rate = 48000
7. Edit ~/.asoundrc and put in it:
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
}
8. sudo alsa reload
9. Make sure you do not have a ~/.pulse/default.pa or if you do, that it
is using load-module module-udev-detect to load Alsa sinks not load-
module module-alsa-sink ...
10. pulseaudio -k and pulseaudio -D
--
Pulseaudio fails with Alsa a52 (ac3) plugin (Ubuntu 10.04 Lucid)
https://bugs.launchpad.net/bugs/348353
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
ubuntu-bugs@lists.ubuntu.com
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
