alsa-project/alsa-lib issue #104 was opened from mhwombat:

I can get audio through my headphones, but not through my speakers.

Basic checks:

- Speakers work on another machine - Speakers are plugged in and turned on - Headphones are unplugged when using speakers - My user account is in the audio group. - Nothing is muted in alsamixer

I think the cause might be this `module-alsa-card.c: Failed to find a working profile.`

``` $ journalctl --user -u pulseaudio | tail -n 20 -- Reboot -- Nov 28 22:35:15 nixos systemd[2142]: Starting Sound Service... Nov 28 22:35:15 nixos pulseaudio[2160]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile. Nov 28 22:35:15 nixos pulseaudio[2160]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="pci-0000_22_00.4" card_name="alsa_card.pci-0000_22_00.4" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. Nov 28 22:35:17 nixos pulseaudio[2160]: E: [pulseaudio] module-jackdbus-detect.c: Unable to contact D-Bus session bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11 Nov 28 22:35:17 nixos pulseaudio[2160]: E: [pulseaudio] module.c: Failed to load module "module-jackdbus-detect" (argument: "channels=2"): initialization failed. Nov 28 22:35:17 nixos pulseaudio[2160]: W: [pulseaudio] server-lookup.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11 Nov 28 22:35:17 nixos pulseaudio[2160]: W: [pulseaudio] main.c: Unable to contact D-Bus: org.freedesktop.DBus.Error.NotSupported: Unable to autolaunch a dbus-daemon without a $DISPLAY for X11 Nov 28 22:35:17 nixos systemd[2142]: Started Sound Service. Nov 28 22:35:17 nixos pulseaudio[2160]: E: [pulseaudio] bluez5-util.c: GetManagedObjects() failed: org.freedesktop.DBus.Error.ServiceUnknown: The name org.bluez was not provided by any .service files Nov 29 17:24:50 nixos systemd[2142]: pulseaudio.service: Current command vanished from the unit file, execution of the command list won't be resumed. Nov 29 17:25:00 nixos pulseaudio[2160]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile. Nov 29 17:25:00 nixos pulseaudio[2160]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="pci-0000_22_00.4" card_name="alsa_card.pci-0000_22_00.4" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. Nov 29 17:25:00 nixos pulseaudio[2160]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile. Nov 29 17:25:00 nixos pulseaudio[2160]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="pci-0000_22_00.4" card_name="alsa_card.pci-0000_22_00.4" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. Nov 29 17:25:01 nixos pulseaudio[2160]: E: [pulseaudio] module-alsa-card.c: Failed to find a working profile. Nov 29 17:25:01 nixos pulseaudio[2160]: E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="pci-0000_22_00.4" card_name="alsa_card.pci-0000_22_00.4" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. Dec 01 10:53:45 nixos pulseaudio[2160]: E: [alsa-sink-USB Audio] alsa-sink.c: ALSA woke us up to write new data to the device, but there was actually nothing to write. Dec 01 10:53:45 nixos pulseaudio[2160]: E: [alsa-sink-USB Audio] alsa-sink.c: Most likely this is a bug in the ALSA driver 'snd_usb_audio'. Please report this issue to the ALSA developers. Dec 01 10:53:45 nixos pulseaudio[2160]: E: [alsa-sink-USB Audio] alsa-sink.c: We were woken up with POLLOUT set -- however a subsequent snd_pcm_avail() returned 0 or another value < min_avail. ```

Here is the [output of alsa-info_alsa-info.sh](https://alsa-project.org/db/?f=c5a24a41c9ab6f2b320362b6b0d3afee507d6cab).

Issue URL : https://github.com/alsa-project/alsa-lib/issues/104 Repository URL: https://github.com/alsa-project/alsa-lib