Hello ALSA folks, TL;DR: I wanted to play sounds on the built-in speakers and headphones at the same time, fiddled with some settings ("alsa mixer paths"), they didn't do what I wanted, reverted the settings, and now no sound comes out of the speakers, nor the headphones: it looks like the analog codec is no longer recognized by ALSA. To expand a little, this is an old Thinkpad (Thinkpad 25, a version of T470), that worked perfectly until I decided I wanted simultaneous output on the speakers and the headphones. I googled around and found this tutorial: https://github.com/luisbocanegra/linux-guide-split-audio-ports which advises to "disable Headphone jack detection for speakers", so I edited the file: /usr/share/alsa-card-profile/mixer/paths/analog-output-speaker.conf basically applying the following diff: @@ -25,7 +25,7 @@ device.icon_name = audio-speakers [Jack Headphone] -state.plugged = no +state.plugged = unknown state.unplugged = unknown [Jack Dock Headphone] @@ -97,9 +97,6 @@ ; This profile path is intended to control the speaker, let's mute headphones ; else there will be a spike when plugging in headphones -[Element Headphone] -switch = off -volume = off [Element Headphone,1] switch = off After restarting pipewire and wireplumber, I noticed that things didn't work the way I expected. It's all a blur right now, but I believe either the speakers or the headphones were still muted, but the opposite way you'd think: sound was coming out of the speakers when the headphones where plugged in. In any case, I decided this is not what I wanted, so I wanted to revert to the original state. I undid my changes, restarted pipewire and things seemed to be back to normal. A couple of days later, I noticed that pavucontrol still thought the headphones were plugged in (they were not), and I thought this might be some leftover from my mucking around, so I decided to reboot the computer, to go back to a clean slate. After rebooting, no sound was coming from the speakers anymore, and pavucontrol was only showing a "Dummy Output". In the Configuration tab, the "Built-in audio" card was only showing HDMI profiles: the analog stereo output profile was notably missing. Some digging around revealed that ALSA itself was not seeing the analog "device"(?), "codec"(?) anymore, only the HDMI ones. I've uploaded the output of alsa-info.sh: http://alsa-project.org/db/?f=63ac5dc2278fd29319b71cf425b581011f58dcb6 I've also tried booting from a live CD, to make sure I didn't forget cleaning up some cached data, but pavucontrol on the live system showed the exact same situation. It appears that my experiments put the card in some persistent unhappy state, that prevents ALSA from properly using it. I then tried booting into a FreeBSD live CD (NomadBSD, to be precise), and lo and behold, the card worked there. Rebooting into Linux, the card kept working, so I re-ran alsa-info.sh, and got this output: http://alsa-project.org/db/?f=4abea62a33c046bdc7ad4d0860f3910885a80317 It looks like I have a Realtek ALC298 analog codec, that was not recognized in the broken state. A couple of days later, I noticed pavucontrol was once again thinking my headphones were plugged it (they were not), and no sound was coming from the speakers, nor the headphones (when they were plugged in). Looking in the kernel logs, I saw this: snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to polling mode: last cmd=0x0173b080 snd_hda_intel 0000:00:1f.3: No response from codec, disabling MSI: last cmd=0x0173b080 snd_hda_intel 0000:00:1f.3: azx_get_response timeout, switching to single_cmd mode: last cmd=0x0173b080 Rebooting the system brought me back in the previous broken state, with the Realtek codec not getting recognized, with nothing about it in the kernel log. So, what do you think? Is there any way to restore my sound card to health, or am I forever stuck with Bluetooth speakers? Is there any way to reset the audio controllers? Any advice will be deeply appreciated. Thanks, -=[david]=- _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user