
I gave up on this AV sync
I’ve been struggling with this for the last 10 hours and have finally given up trying to fix it on my own. I’m hoping someone here can help. My setup is an Nvidia Shield Pro connected to Onkyo TX-NR575E receiver, which is then connected to a Sony X90L TV.
When I use the YouTube app on the Nvidia Shield to play an A/V sync test video, the audio is out of sync. However, if I connect the Nvidia Shield directly to the Sony X90L and send the audio back to the Onkyo through ARC, everything is perfectly in sync.
That ruled out the HDMI cables, the Nvidia Shield settings, the TV settings, and even the YouTube app itself.
All three devices are running the latest firmware. I also tried adjusting the A/V Sync setting in the Onkyo Quick Menu, but it doesn’t fix the issue. Since everything is perfectly synced at 0 ms when the Shield is connected directly to the TV, I would expect it to also be synced at 0 ms when connected through the receiver. I tried changing it to +30, +80, -30, and -80 ms anyway, but none of those settings made a difference.
I’ve also disabled HDMI CEC on the Onkyo (which also disables ARC) and tested again with the Shield connected directly to the receiver, but that didn’t help. I changed HDMI cables, adjusted the TV A/V Sync setting even though it shouldn’t apply in this setup, factory reset the Onkyo, and ran the speaker calibration again. None of it made any difference.
At this point I’m completely out of ideas. If anyone has experienced this or knows what could be causing it, I’d really appreciate any suggestions. Thanks!
Test Videos I took:
https://youtube.com/shorts/Y6sL9EpYgBM?si=cMY_nnsfLrmF660G