Hello
When playing video for example on youtube or facebook if the sound is routed to the internal speakers on the laptop via Build in Analog Stereo then everything is ok.
When I switch to external speakers connected to the USB3 connector labeled Pebble V3 Digital Stereo IEC985 the video stutters. Audio goes OK all the time.
The problem is on Xubuntu 24.04.
On Xubuntu 22.04 this problem did not occur.
The same problem occurs, for example, when playing videos through movie apps.
After playing audio to the same speakers over bluetooth, it does not jam video.
Ideas?
Helllo!
I understand you’re experiencing video stuttering when using your USB-connected Pebble V3 speakers on Xubuntu 24.04, while the audio remains unaffected. I notice a few key points:
-
The issue only occurs with USB audio output, not with:
- Internal speakers
- The same speakers when connected via Bluetooth
-
The problem seems universal across video applications (YouTube, Facebook, movie players)
-
This worked fine on Xubuntu 22.04
This pattern suggests a potential USB audio driver or PulseAudio/PipeWire configuration issue in 24.04. Here are some troubleshooting steps you can try:
First, let’s check if this is a USB bandwidth issue:
sudo dmesg | grep -i usb
Look for any errors or bandwidth warnings.
Next, try forcing a different USB audio mode:
sudo nano /etc/modprobe.d/audio.conf
Add this line:
options snd-usb-audio index=1 sync_urbs=1
Save, then reboot.
If that doesn’t help, let’s try adjusting PulseAudio’s buffer settings:
sudo nano /etc/pulse/daemon.conf
Find and modify these lines (uncomment if needed):
default-fragments = 8
default-fragment-size-msec = 10
You can also try running:
pulseaudio -k
pulseaudio --start
If these steps don’t resolve the issue, could you please run:
inxi -SMA
and share the output? This will help identify if there might be a hardware-specific incompatibility with the new Ubuntu version.
Let us know how these steps work for you, and we can explore other solutions if needed.