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#1 2025-09-13 00:49:29

pentad
Member
Registered: 2023-06-13
Posts: 6

org.kde.pulseaudio: No object for name "ALVR Audio"

Issue: I cannot hear any audio when I use Steam VR and ALVR on Linux. I am using a wired connection. I installed Aircar to test sounds as I try to resolve the audio issue.

I found this in the logs:

Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Microphone"


The strange thing is I did this two months ago and had no issues. My 4TB m.2 drive died and I received a replacement. I install Linux, restored my files from backup, and then did a fresh install of Steam/SteamVR/ALVR. I didn't run into this issue the last time. I have included all the steps I have tried to resolve the No object for name "ALVR Audio".

Any help would be greatly appreciated!

Thanks!


Here is everything I've done so far:

-I am using the 09-10-25 nightly build of ALVR on Linux.
-I installed the 09-10-25 nightly ALVR apk client on my Quest 3.
-I have added this line to SteamVR:
__GLX_VENDOR_LIBRARY_NAME=nvidia __NV_PRIME_RENDER_OFFLOAD=1 VK_DRIVER_FILES=/usr/share/vulkan/icd.d/nvidia_icd.json /home/mark/.local/share/Steam/steamapps/common/SteamVR/bin/vrmonitor.sh %command%
-I have also tried this line in SteamVR:
QT_QPA_PLATFORM=xcb __GLX_VENDOR_LIBRARY_NAME=nvidia __NV_PRIME_RENDER_OFFLOAD=1 VK_DRIVER_FILES=/usr/share/vulkan/icd.d/nvidia_icd.json /home/mark/.local/share/Steam/steamapps/common/SteamVR/bin/vrmonitor.sh %command%
-I have added this line to Aircar (for testing):
__GLX_VENDOR_LIBRARY_NAME=nvidia __NV_PRIME_RENDER_OFFLOAD=1 VK_DRIVER_FILES=/usr/share/vulkan/icd.d/nvidia_icd.json %command%
-I am using KDE Plasma with Wayland.
-I set the default audio to ALVR Audio in the Sound System Settings.
-I also set the default audio in Steam to use ALVR Audio.
-I am using Pipewire and have Pipewirer-pulse installed.
-I have an Nvidia 4070 GPU using the latest Nvidia drivers.
-I ran this command: sudo usermod -aG audio $USER but it made no difference (I did logout and log back in)


==================================================================================================
PAVURCONTROL:

In pavucontrol under playback I see an odd settng:

Librewolf on Unknown output
Aircar audio steam #1 on Unknown output

NOTE: Unknown port is a drop down menu containing:
  Built-in Audio Analog Stereo
  ALVR Audio
  Unknown output

If I change Unknnown output to ALVR Audio on either entry the screen goes blank with this message:

Establishing connection to Pulseaudio. Please wait...

The screen then restores back to normal, but the audio stream always returns to Unknown output


==================================================================================================
FORCE ALVR AUDIO SINK

I tried to force the sink:

pactl list short sinks
50    alsa_output.pci-0000_00_1f.3.analog-stereo    PipeWire    s32le 2ch 48000Hz    SUSPENDED
74    ALVR Audio    PipeWire    s16le 2ch 44100Hz    SUSPENDED

pactl set-default-sink "ALVR Audio"

No difference


==================================================================================================
PLAYING AUDIO IN ALVR AUDIO:

When I try this command:
paplay /usr/share/sounds/alsa/Front_Center.wav

I receive this error:

Failed to drain stream: Timeout


When I try this command:
pw-play /usr/share/sounds/alsa/Front_Center.wav

Never plays, just sits and waits until I hit control-c


When I try this command:
pw-play --target "ALVR Audio" /usr/share/sounds/alsa/Front_Center.wav

Never plays, just sits and waits until I hit control-c


==================================================================================================
LOGS:
journalctl | grep pulseSep 12 16:15:52 NCC1701L sudo[277729]:     mark : TTY=pts/2 ; PWD=/home/mark ; USER=root ; COMMAND=/usr/bin/systemctl --user status pipewire-pulse
Sep 12 16:15:59 NCC1701L sudo[277782]:     mark : TTY=pts/2 ; PWD=/home/mark ; USER=root ; COMMAND=/usr/bin/systemctl status pipewire-pulse
Sep 12 16:16:09 NCC1701L sudo[277843]:     mark : TTY=pts/2 ; PWD=/home/mark ; USER=root ; COMMAND=/usr/bin/systemctl --user start pipewire-pulse
Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L kded6[1328]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:22:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:22:27 NCC1701L systemd[1126]: app-org.pulseaudio.pavucontrol@e6715b1d4fe9446eac42498e3f06bb17.service: Consumed 13.620s CPU time, 43.2M memory peak.
Sep 12 16:25:12 NCC1701L systemd[1126]: pipewire-pulse.service: Consumed 13min 14.492s CPU time, 68M memory peak.
Sep 12 16:25:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: context kaput
Sep 12 16:25:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
Sep 12 16:25:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "alsa_output.pci-0000_00_1f.3.analog-stereo"
Sep 12 16:25:12 NCC1701L plasmashell[1375]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: context kaput
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: context kaput
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Audio"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "ALVR Microphone"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:50 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Sep 12 16:47:50 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "auto_null"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "auto_null"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "auto_null.monitor"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SINK@"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "@DEFAULT_SOURCE@"
Sep 12 16:47:51 NCC1701L kded6[1322]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"
Sep 12 16:47:51 NCC1701L plasmashell[1369]: org.kde.pulseaudio: No object for name "alsa_input.pci-0000_00_1f.3.analog-stereo"

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