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