[alsa-devel] [PATCH v3 4/4] ALSA: hda - Add DP-MST support for NVIDIA codecs

[Nikhil Mahale]

hdmi_present_sense()
  |-> hdmi_present_sense_via_verbs()
code path need to query PCM jack using pin_idx_to_jack() function and update
its status, just like sync_eld_via_acomp().

Sending patch to get it fixed.

Thanks,
Nikhil Mahale

On 2/3/20 1:07 PM, Jaroslav Kysela wrote:
> External email: Use caution opening links or attachments
> 
> 
> Dne 03. 02. 20 v 0:50 Martin Regner napsal(a):
>> Hi Jaroslav,
>>
>> thanks for the tip. I tried this (in my case echo on  >
>> /sys/bus/pci/devices/0000\:09\:00.1/power/control) but that didn't help.
>>
>> If i comment out the line
>>
>> spec->dyn_pcm_assign = true;
>>
>> in patch_nvhdmi sound is working again.
> 
> Could you show us (upload it to the alsa server and post only URLs) the output
> from alsa-info.sh for both variants (spec->dyn_pcm_assign = true and false) ?
> 
>                                        Thanks,
>                                                Jaroslav
> 
>>
>> Curiously nobody else seems to have this problem. This makes me think
>> the problem lies elsewhere but i have no more ideas at the moment.
>>
>> On 03.02.20 00:00, Jaroslav Kysela wrote:
>>> Dne 02. 02. 20 v 15:18 Martin Regner napsal(a):
>>>> Hi Takashi,
>>>>
>>>> thanks for your reply. I tried that with
>>>>
>>>> cat /proc/asound/card0/codec#0
>>>>
>>>> but that doesn't help. I'm digging me through the kernel config right
>>>> now. May have to change something else.
>>>>
>>>> I simply could create a patch on my gentoo system switching from
>>>> patch_nvhdmi to patch_nvhdmi_legacy for every new kernel, but that won't
>>>> work forever.
>>>>
>>>> If you have other thinks i could try i'd appreciate to hear them.
>>>
>>> You may try to disable PM:
>>>
>>> echo on > /sys/bus/pci/devices/0000\:01\:00.1/power/control
>>>
>>>                  Jaroslav
>>>
>>>
>>>>
>>>> kind regards
>>>> Martin
>>>>
>>>> On 02.02.20 09:37, Takashi Iwai wrote:
>>>>> On Sat, 01 Feb 2020 16:28:08 +0100,
>>>>> Martin Regner wrote:
>>>>>> Hi there,
>>>>>>
>>>>>> since i updated to kernel 5.5 i have no sound over hdmi anymore
>>>>>> (GeForce RTX
>>>>>> 2070).
>>>>>>
>>>>>> With the previous kernel 5.4.14 everything is fine.
>>>>>>
>>>>>> Although i got sound with speaker-test -D hdmi:CARD=NVidia,DEV=2 -c
>>>>>> 2 -r
>>>>>> 44100, pavucontrol shows all hdmi sound devices as unplugged.
>>>>>>
>>>>>> I bisected it down to this commit
>>>>>> (5398e94fb753d022301825ebfa5f7cf8a660d8eb)
>>>>>> and changed the line
>>>>>>
>>>>>> HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP",  patch_nvhdmi)
>>>>>>
>>>>>> to
>>>>>>
>>>>>> HDA_CODEC_ENTRY(0x10de0093, "GPU 93 HDMI/DP", patch_nvhdmi_legacy)
>>>>>>
>>>>>> Now it's working again. I'm not sure if this is a problem with
>>>>>> pulseaudio or
>>>>>> if the RTX 2070 does not support the mentioned codec.
>>>>> The runtime PM turns off the link, so the hotplug notification won't
>>>>> be delivered as default.  Please try reading the corresponding proc
>>>>> file, /proc/asound/card*/codec* file.  This may power up the codec and
>>>>> trigger the hotplug detection if that's the cause.
>>>>>
>>>>>
>>>>> Takashi
>>>>
>>>>
>>>> _______________________________________________
>>>> Alsa-devel mailing list
>>>> Alsa-devel at alsa-project.org
>>>> https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
>>>>
>>>
>>>
>>
> 
> 
> -- 
> Jaroslav Kysela <perex at perex.cz>
> Linux Sound Maintainer; ALSA Project; Red Hat, Inc.