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On Tuesday, 28 April 2020 14:18:52 BST Mark Knecht wrote: |
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|
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Has KMail started misbehaving again? I'm certain I read a reply from Michael, |
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but now there's no trace of it after a reboot (see below). Anyway, I created |
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an /etc/asound.conf with the content he recommended. That gave me sound back. |
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Thanks Michael. |
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|
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> 1) First, if you really don't want the intel stuff loaded then either don't |
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> build it in your kernel or (easier - it's what I do) just blacklist the |
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> intel sound driver. The following link has some instructions which explain |
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> the process. |
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|
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> https://www.techtimejourney.net/how-to-blacklist-a-sound-card-in-linux/ |
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|
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Thanks for the pointer, Mark. |
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|
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> Please provide the output of |
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> |
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> ls /proc/asound |
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> cat /proc/asound/cards |
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> cat /proc/asound/modules |
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|
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# ls /proc/asound |
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card0 card2 Device HDMI modules pcm timers version |
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card1 cards devices hwdep oss seq USB |
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|
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# cat /proc/asound/cards |
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0 [HDMI ]: HDA-Intel - HDA ATI HDMI |
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HDA ATI HDMI at 0xfbe60000 irq 59 |
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1 [USB ]: USB-Audio - HD Webcam USB |
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HD Webcam USB HD Webcam USB at usb-0000:00:14.0-6, high |
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speed |
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2 [Device ]: USB-Audio - USB Audio Device |
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C-Media Electronics Inc. USB Audio Device at |
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usb-0000:00:14.0-13, full speed |
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|
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# cat /proc/asound/modules |
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0 snd_hda_intel |
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1 snd_usb_audio |
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2 snd_usb_audio |
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|
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> 1) First, if you really don't want the intel stuff loaded then either don't |
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> build it in your kernel or (easier - it's what I do) just blacklist the |
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> intel sound driver. The following link has some instructions which explain |
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> the process. |
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> |
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> https://www.techtimejourney.net/how-to-blacklist-a-sound-card-in-linux/ |
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> |
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> Restart Alsa and double check the cards and modules shown in /proc/asound. |
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> |
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> 2) As you are on KDE you likely have pulseaudio running. Run pavucontrol, |
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> run Firefox with some audio and see where you are sending Firefox audio. |
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Nope. No pulseaudio. |
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|
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> 3) You probably don't have to mess with Alsa configuration itself to fix |
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> this so keep it simple for now. We can go there later if need be. |
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|
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Meanwhile there are a few complications. First, I also have a webcam with a |
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microphone. I should have unplugged this before asking my question. |
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|
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Second, there's a sound driver in my Radeon Pro WX 5100, which I may want to |
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experiment with later if I can find a way to extract the sound from my |
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DisplayPort link (not HDMI after all; I was mistaken about that in an earlier |
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thread). I can't disable it anyway, as far as I know. It may account for the |
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Intel modules. |
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|
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Third, I haven't any alsa packages installed, except for alsamixer which I |
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installed to help with this problem (it didn't). There's no starting or |
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stopping alsa; KDE seems to have what it needs without alsa specifically. |
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That's why I had no asound.conf; it's also why I rebooted instead of doing |
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something less heavy handed. Then again, why do I need an asound.conf? |
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|
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-- |
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Regards, |
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Peter. |