On 05/07/18 08:54, Adam Carter wrote:
> Does anyone know of a reason why this would happen?
>
>
> Is firefox built with pulseaudio? If so, check the pavucontrol settings
> too (media-sound/pavucontrol)
>
> Perhaps VLC is talking directly to ALSA, but firefox is talking to
> pulseaudio to get to ALSA, and there's an issue with pulse hence the
> discrepancy between VLC and firefox.
No PulseAudio on the machine, Lennart makes my skin crawl, and I think
you can infer from that that there has never been PulseAudio on the
machine. It basically boils down to:
Before holiday -> Firefox/Youtube makes noise.
Go away for a holiday
Come back from holiday
Turn on computer -> no boot, "dead in the water", "this is an ex-parrot".
...
...
...
etc
Whilst writing this I had a brain wave. Was Firefox
hardcoded/defaulting to "reading/writing/working" the first discovered
sound card? I subsequently removed the tricks that I had done to get VLC
working and rebooted. No sound as expected. "lspci -nn | grep -i audio"
and "aplayer -l" shows the nVidia chip to be first:
0a:00.1 Audio device [0403]: NVIDIA Corporation GP106 High Definition
Audio Controller [10de:10f1] (rev a1)
0c:00.3 Audio device [0403]: Advanced Micro Devices, Inc. [AMD] Device
[1022:1457]
so can I disable the HDMI sound chip with an ebuild option in the nvidia
ebuild - it appears not. Next can I reorder the discovery/assignment
process?
More googling found:
https://www.linuxquestions.org/questions/linux-hardware-18/wrong-sound-card-order-in-alsa-4175544059/
and
http://docs.slackware.com/howtos:hardware:audio_and_snd-hda-intel
which resulted in me having to rebuild my kernel as I usually have
everything linked in, no modules, and updating the
/etc/modprobe.d/alsa.conf
file. I added the lines below. Note that the vid & pid values for the
AMD are now assigned first.
alias snd-card-0 snd-hda-intel
alias snd-card-1 snd-hda-intel
options snd-hda-intel index=0 vid=1022 pid=1457
options snd-hda-intel index=1 vid=10de pid=10f1
A reboot and I now have sound everywhere - YEAH!!!!!!
There is every chance that someone way more versed in the innards of
the boot process may indicate holes in the above but hey, it works.
Andrew
