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