On Wed, Sep 18, 2019 at 07:57:51PM -0400, Walter Dnes wrote > > I did some further digging. It appears that the instructions I > followed are for capture devices (USB microphones, etc). According to > https://trac.ffmpeg.org/wiki/Capture/ALSA if I want to record from a > running application, I need to load the "snd_aloop" module and mention > it in a local .asoundrc. According to the linux kernel config help... > > CONFIG_SND_ALOOP: > > | Say 'Y' or 'M' to include support for the PCM loopback device. | > | This module returns played samples back to the user space using | > | the standard ALSA PCM device | > > Oh well, there is a new kernel, so I'll build it with the module, and > get back later to see how things work.
That failed differently. With the local .asoundrc present, I loaded the snd_aloop module. It showed up as a capture device in alsamixer. But I had no sound on the speakers when playing Youtube. Even worse, I was unable to unload the snd_aloop module. When trying to do so, I got FATAL ERROR: Module in use. The normal way around that is to unload any other modules using it. But I have everything, except snd_aloop, built into the kernel. So there was nothing to unload to release snd_aloop. I ended up renaming .asoundrc, and rebooting. -- Walter Dnes <waltd...@waltdnes.org> I don't run "desktop environments"; I run useful applications
