Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

[Hans de Goede]

Hi All,

This bug got filed against Fedora last night:
https://bugzilla.redhat.com/show_bug.cgi?id=1879277
"1879277 - Audio ducking after Linux kernel 5.8.8 update, with headphones plugged in"

The system in the bug is using a MSI X570-A PRO motherboard. So this is almost
certainly (this has not been confirmed) caused by commit 8e83bd51016a in the
stable tree: "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO".

I'm not sure how to proceed with this one for the stable series,
I guess a revert is in order, but that may (re)break non headphone usage?

Takashi, do you have any suggestions?

For more info please directly contact the reporter through bugzilla.

Regards,

Hans

Re: Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

[Greg Kroah-Hartman]

On Wed, Sep 16, 2020 at 08:28:29AM +0200, Hans de Goede wrote:
> Hi All,
> 
> This bug got filed against Fedora last night:
> https://bugzilla.redhat.com/show_bug.cgi?id=1879277
> "1879277 - Audio ducking after Linux kernel 5.8.8 update, with headphones plugged in"
> 
> The system in the bug is using a MSI X570-A PRO motherboard. So this is almost
> certainly (this has not been confirmed) caused by commit 8e83bd51016a in the
> stable tree: "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO".
> 
> I'm not sure how to proceed with this one for the stable series,
> I guess a revert is in order, but that may (re)break non headphone usage?

If you revert, then 5.9-final will also cause the same problem, right?

Or is all ok there?

thanks,

greg k-h

Re: Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

[Hans de Goede]

Hi,

On 9/17/20 4:31 PM, Greg Kroah-Hartman wrote:
> On Wed, Sep 16, 2020 at 08:28:29AM +0200, Hans de Goede wrote:
>> Hi All,
>>
>> This bug got filed against Fedora last night:
>> https://bugzilla.redhat.com/show_bug.cgi?id=1879277
>> "1879277 - Audio ducking after Linux kernel 5.8.8 update, with headphones plugged in"
>>
>> The system in the bug is using a MSI X570-A PRO motherboard. So this is almost
>> certainly (this has not been confirmed) caused by commit 8e83bd51016a in the
>> stable tree: "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO".
>>
>> I'm not sure how to proceed with this one for the stable series,
>> I guess a revert is in order, but that may (re)break non headphone usage?
> 
> If you revert, then 5.9-final will also cause the same problem, right?
> 
> Or is all ok there?

The reporter has not tested 5.9, but I assume that 5.9 final will also have this problem.

Regards,

Hans

Re: Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

[Takashi Iwai]

On Thu, 17 Sep 2020 16:42:01 +0200,
Hans de Goede wrote:
> 
> Hi,
> 
> On 9/17/20 4:31 PM, Greg Kroah-Hartman wrote:
> > On Wed, Sep 16, 2020 at 08:28:29AM +0200, Hans de Goede wrote:
> >> Hi All,
> >>
> >> This bug got filed against Fedora last night:
> >> https://bugzilla.redhat.com/show_bug.cgi?id=1879277
> >> "1879277 - Audio ducking after Linux kernel 5.8.8 update, with headphones plugged in"
> >>
> >> The system in the bug is using a MSI X570-A PRO motherboard. So this is almost
> >> certainly (this has not been confirmed) caused by commit 8e83bd51016a in the
> >> stable tree: "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO".
> >>
> >> I'm not sure how to proceed with this one for the stable series,
> >> I guess a revert is in order, but that may (re)break non headphone usage?
> >
> > If you revert, then 5.9-final will also cause the same problem, right?
> >
> > Or is all ok there?
> 
> The reporter has not tested 5.9, but I assume that 5.9 final will also have this problem.

This quirk addition would work equally on both 5.8 and 5.9, so very
likely hit the same issue on 5.9.  I'll queue the revert of the commit
15cbff3fbbc6.

And I noticed that the BugLink URL in the commit doesn't seem pointing
to the right report.

Dan, could you give the proper URL so that we can track which device
is actually being worked on?


thanks,

Takashi

Re: Sound regression in 5.8.8 caused by "ALSA: hda - Fix silent audio output and corrupted input on MSI X570-A PRO"

[Dan Crawford]

Hi all,

Sorry about this regression. It seems to be fine for me; if it's useful
I can post my hardware details and kernel modules to isolate the issue.

I've posted a new bug report here:
https://bugzilla.kernel.org/show_bug.cgi?id=209347

Cheers,
Dan