[alsa-devel] VIA VT1828S hda_intel errors
hancockrwd at gmail.com
Fri Oct 30 02:05:15 CET 2009
I've been using the VT1828S codec support from ALSA git for the last few
weeks. It seems to work fine, but there are some problems showing up in
Oct 25 20:46:14 newcastle kernel: ALSA sound/pci/hda/hda_intel.c:683: No
response from codec, disabling MSI: last cmd=0x02af0900
Oct 25 20:46:15 newcastle kernel: ALSA sound/pci/hda/hda_intel.c:698:
azx_get_response timeout, switching to polling mode: last cmd=0x02af0900
It seems like the cmd isn't always the same, previously it was
0x024f0c00. Is there something bad about this command that could be
causing the response timeout? Also, disabling MSI for one occurrence of
this seems a bit paranoid..
Also saw one of these:
Oct 26 21:13:20 newcastle kernel: hda-intel: IRQ timing workaround is
activated for card #0. Suggest a bigger bdl_pos_adj.
and PulseAudio also complained:
Oct 26 00:27:50 newcastle pulseaudio: alsa-sink.c: ALSA woke us
up to write new data to the device, but there was actually nothing to write!
Oct 26 00:27:50 newcastle pulseaudio: alsa-sink.c: Most likely
this is a bug in the ALSA driver 'snd_hda_intel'. Please report this
issue to the ALSA developers.
Oct 26 00:27:50 newcastle pulseaudio: alsa-sink.c: We were woken
up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0
or another value < min_avail.
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