Lenovo P520/Realtek ALC662 - front jack & mic in

Jan Pokorny lists at t.poki.me
Mon Jun 1 23:36:10 CEST 2020


On 5/31/20 6:07 PM, Jan Pokorny wrote:
> So, what can be done about getting these work?
> 
> * front panel headset jack
>    - headphones mode only
>    - headset
> 
> * rear mic jack for the mic
> 
> * internal speaker without said noise, just in case it is
>    ever needed as a backup ... it definitely worked rather
>    well under Windows

Ah, this last one can be marked as checked, suddenly noticed
that graphical terminal generated "nice" alarm just resounded
unexpectedly :-)

Sadly, this snd_pcsp appears to be a prerequisite and it is
not loaded automatically in this Fedora Rawhide installation
and with this audio HW (~ no out of the box experience,
not sure where to forward this after more testing, cannot
immediately as it cannot be unloaded for being in use).

The noisy sound will only appear when a separate (not
present unless snd_pcsp is loaded) PC-Speaker (Master)
channel gets unmuted.  Maybe I even confused cause and
effect about this, it's all, well, confusing, so sorry
if that was the case.

-- 
Jan


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