AI augmented photo booth using the DGX Spark and Reachy Mini.
| Symptom | Cause | Fix |
|---|---|---|
| No audio from robot (low volume) | Reachy speaker volume set too low by default | Increase Reachy speaker volume to maximum |
| No audio from robot (device conflict) | Another application capturing Reachy speaker | Check animation-compositor logs for "Error querying device (-1)", verify Reachy speaker is not set as system default in Ubuntu sound settings, ensure no other apps are capturing the speaker, then restart the demo |
| Image-generation fails on first start | Transient initialization issue | Rerun docker compose up --build -d to resolve the issue |
If you have any issues with Reachy that are not covered by this guide, please read Hugging Face's official troubleshooting guide.
NOTE
DGX Spark uses a Unified Memory Architecture (UMA), which enables dynamic memory sharing between the GPU and CPU. With many applications still updating to take advantage of UMA, you may encounter memory issues even when within the memory capacity of DGX Spark. If that happens, manually flush the buffer cache with:
sudo sh -c 'sync; echo 3 > /proc/sys/vm/drop_caches'
For latest known issues, please review the DGX Spark User Guide.