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