Re: snd_hda_intel preventing hdmi monitor to wake up from sleep

Kai Vehmanen <[email protected]> Mon, 12 Oct 2020 15:23:45 +0300 (EEST)

Newsgroups	gmane.linux.alsa.user
Organization	Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7 02160 Espoo
Message-ID	<[email protected]>

Hi,

On Mon, 12 Oct 2020, NoÃš Murr wrote:

> I tried what you suggested and as expected the command aplay -l didn't
> show the hdmi outputs anymore, but it does not solve the problem.
> 
> I run the alsa-info script and I attached it to this email.

thanks, seems like the discrete GPU audio enabling fails:

[    3.410544] snd_hda_intel 0000:01:00.1: can't change power state from D3cold to D0 (config space inaccessible)
[    3.410561] snd_hda_intel 0000:01:00.1: can't change power state from D3hot to D0 (config space inaccessible)
[...]
[    3.509196] hdaudio hdaudioC1D0: no AFG or MFG node found
--
[    3.509225] hdaudio hdaudioC1D7: no AFG or MFG node found
[    3.509226] snd_hda_intel 0000:01:00.1: no codecs initialized

Did you try this:
options snd_hda_intel enable=1,0

This should disable the second card and avoid the above errors. Otherwise, 
hopefully someone more familiar with this hardware and/or the 
vga_switcheroo logic will chime in.

Br, Kai

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