[alsa-devel] [PATCH 7/7] ALSA: x86: hdmi: continue playback even when display resolution changes

[Pierre-Louis Bossart]

>> This change itself is OK, but this made me wonder about the driver
>> implementation: the current MAX_PB=1 is the hardware limitation or the
>> soft limitation?  That is, can't we play back two streams when we connect
>> two HDMI monitors?
>>
>
> Two streams was never validated from hardware per se. So setting the limitation in software.

To be clearer, the IP itself does support 2 streams going to two 
different pipes in parallel but we never had a validation platform for 
Atom gizmos with two connectors and no use case for tablets/phone.
Never say never as usual, now we see CHT mini-PC devices with 2 
connectors, either both DP or DP+HDMI so we'll have to see how things go 
when both are enabled. It's on the TODO list.