I downloaded and ran the latest image 5.15.1-3 ARM 64 bitu, RockPI 4b. Boots fine, and runs for a random period, with no keyboard or mouse input. Randomly crashes entire system without any changes to the image, needs cycling power to restart. Wondering if I need to downgrade the kernel. Is there a crashdump file somewhere?
Is this on it usb3 or usb2 port?
Do you see any error on screen?
Where did you get this image from? Can you share the link for the image?