Open ladyada opened 6 years ago
Answered in forums. I'm like 83% certain it's a power issue. Definitely not a peripheral conflict. Will await their response before closing this.
I'm experiencing this and I am not entirely sure it's a power issue.
I also get flickering on the left eye if I stress the CPU. For instance stress --cpu 4
will trigger a significant flicker.
At least in my case it only happens with Ubuntu mate, with raspbian it works perfectly fine with picam + stress --cpu 8.
Some more info for anyone stumbling on this.
It looks like right eye thread uses only about 5% of a CPU core, but left eye uses almost 100% of a CPU core. Doing some fiddling with thread affinity and kernel cpu isolation, I reserve one full cpu for the left eye and then it works fine.
https://forums.adafruit.com/viewtopic.php?f=19&t=131585
unknown why!