For all people who still see the problem: please test 5.3-rc6 or rc7
kernel and confirm that the problem persists.
Once after confirming the same issue with 5.3-rc7, and it's about the
PCI device 1022:1457 or 1022:1487, then check the following:
1. Change the return value of azx_get_delay_from_fifo() to 0, e.g.
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -887,7 +887,7 @@ static int azx_get_delay_from_fifo(struct azx *chip, struct
azx_dev *azx_dev,
struct snd_pcm_substream *substream = azx_dev->core.substream;
/* just read back the calculated value in the above */
- return substream->runtime->delay;
+ return 0; // return substream->runtime->delay;
}
static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
2. Change the return value of azx_get_delay_from_fifo() to 0 only for playback,
e.g.
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -887,7 +887,9 @@ static int azx_get_delay_from_fifo(struct azx *chip, struct
azx_dev *azx_dev,
struct snd_pcm_substream *substream = azx_dev->core.substream;
/* just read back the calculated value in the above */
- return substream->runtime->delay;
+ if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+ return substream->runtime->delay;
+ return 0;
}
static unsigned int azx_skl_get_dpib_pos(struct azx *chip,
3. Drop SNDRV_PCM_INFO_BATCH workaround in hda_controller.c
--- a/sound/pci/hda/hda_controller.c
+++ b/sound/pci/hda/hda_controller.c
@@ -613,12 +613,14 @@ static int azx_pcm_open(struct snd_pcm_substream
*substream)
20,
178000000);
+#if 0
/* by some reason, the playback stream stalls on PulseAudio with
* 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)
runtime->hw.info |= SNDRV_PCM_INFO_BATCH;
+#endif
if (chip->align_buffer_size)
/* constrain buffer sizes to be multiple of 128
--
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Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1801540
Title:
Microphone distorted sound on ALC892/1220 on AMD chipsets
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https://bugs.launchpad.net/linux/+bug/1801540/+subscriptions
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