Haswell audio no longer working with new Catpt driver

[Takashi Iwai]

On Fri, 01 Jan 2021 12:10:23 +0100,
Christian Labisch wrote:
> 
> Hi Lars,
> 
> Thanks for your response, as requested I ran alsa-info while playing audio.
> Please check the attached information - to me it looks like it being a bug.
> It should affect many users, will it be solved in the next release 5.10.5 ?

It's likely some runtime PM-related changes that caused this behavior
change.  But, there must be some program that sets the power_save
option explicitly on your system.  As dmesg shows, the default
power_save to this device has been suppressed, but it's activated by
the later action.  On, 5.9.x, this didn't take effect, but on 5.10.x,
this became effective, as it seems.

You can try to pass power_save=0 option to snd-hda-intel module (or
boot with snd_hda_intel.power_save=0 boot option).  It could work
around the issue, although it's no solution.


thanks,

Takashi