Success, this will fix the regression. Thank you for the support and merry christmas :-)

Am Donnerstag, den 19.12.2019, 17:24 -0500 schrieb Laura Abbott:

On 12/19/19 3:59 PM, Stefani Seibold wrote:

...

Hi,

the current Linux Kernel is going kills my speakers of my monitor.

Audio level is always 100 at percent.

I broke down the issue to the following patch:

diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index d8fe7ff0cd58..f9707fb05efe 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -96,12 +96,14 @@ void snd_hdac_stream_start(struct hdac_stream *azx_dev, bool fresh_start) 1 << azx_dev->index, 1 << azx_dev->index); /* set stripe control */

• if (azx_dev->substream)

• stripe_ctl = snd_hdac_get_stream_stripe_ctl(bus,
  

azx_dev->substream);

• else

• stripe_ctl = 0;
  

• snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK,

• 		stripe_ctl);
  

• if (azx_dev->stripe) {

• if (azx_dev->substream)
  

• 	stripe_ctl =
  

snd_hdac_get_stream_stripe_ctl(bus, azx_dev->substream);

• else
  

• 	stripe_ctl = 0;
  

• snd_hdac_stream_updateb(azx_dev, SD_CTL_3B,
  

SD_CTL_STRIPE_MASK,

• 			stripe_ctl);
  

• } /* set DMA start and interrupt mask */ snd_hdac_stream_updateb(azx_dev, SD_CTL, 0, SD_CTL_DMA_START | SD_INT_MASK);

@@ -118,7 +120,10 @@ void snd_hdac_stream_clear(struct hdac_stream *azx_dev) snd_hdac_stream_updateb(azx_dev, SD_CTL, SD_CTL_DMA_START | SD_INT_MASK, 0); snd_hdac_stream_writeb(azx_dev, SD_STS, SD_INT_MASK); /* to be sure */

• snd_hdac_stream_updateb(azx_dev, SD_CTL_3B, SD_CTL_STRIPE_MASK,

0);

• if (azx_dev->stripe) {

• snd_hdac_stream_updateb(azx_dev, SD_CTL_3B,
  

SD_CTL_STRIPE_MASK, 0);

• azx_dev->stripe = 0;
  

• } azx_dev->running = false; } EXPORT_SYMBOL_GPL(snd_hdac_stream_clear);

I think this is fixed by 6fd739c04ffd ("ALSA: hda: Fix regression by strip mask fix") This is already tagged for stable but it would be nice to pick it up sooner.

Thanks, Laura