Hmm, would it be only about playback? That is, restricting the
workaround only to capture stream works better?
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -617,7 +617,8 @@ static int azx_pcm_open(struct snd_pcm_substream *substream)
* tsched=1 when a capture stream triggers. Until we figure out the
* real cause, disable tsched mode by telling the PCM info flag.
*/
- if (chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND)
+ if ((chip->driver_caps & AZX_DCAPS_AMD_WORKAROUND) &&
+ substream->stream == SNDRV_PCM_STREAM_CAPTURE)
runtime->hw.info |= SNDRV_PCM_INFO_BATCH;
if (chip->align_buffer_size)
In anyway, we need to know this change makes sense at all. IOW, people need to
check whether this causes yet another regression on the devices that have
worked with BATCH workaround.
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https://bugs.launchpad.net/bugs/1801540
Title:
Microphone distorted sound on ALC892/1220 on AMD chipsets
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Won't Fix
Status in pulseaudio package in Ubuntu:
Won't Fix
Bug description:
Not sure if I'll report this upstream but there is definitely an issue
with microphone recording on my desktop, this is not happening on my
laptop which has a different codec.
Already tried all workarounds possible, no luck. Only with my desktop
with this particular motherboard. No issues in Windows, the sound
recorded in there is distorted and has some static and robotic tone on
high-pitch.
alsa-info on the attachments
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