[alsa-devel] DP1.2 MST audio support discussion

[Raymond Yau]

>>>>>
>>>>> Do it mean that only one DP MST port and no HDMI port on the
>>>
>>> same graphic
>>>>>
>>>>> card ?
>>>>
>>>>
>>>> No.
>>>
>>> If there is only one HDMI and one Display Port, this mean that there
>>> are two pin complexes
>>> How about the name of jack detection kctl of three Display Port
>>> monitors  which are created on the same pin complex but different
>>> dev_index ?
>>
>>
>> For the jack name, what do you think if we change to
>> "HDMI/DP, pin=n, dev=m" format? Will it impact on pulseaudio?
>
>
> Yes, it will impact PulseAudio. It will require changes to files in
>
>
http://cgit.freedesktop.org/pulseaudio/pulseaudio/tree/src/modules/alsa/mixer/paths

Why do we use "hdmi" when MST is only supported by Display Port ?

https://bugs.freedesktop.org/show_bug.cgi?id=72795#c56

It seem the graphic driver use different name for HDMI and DP

DP1-1 , DP1-2 and DP1-3 , HDMI1