After I upgraded my Jetson to the jetpack 5.1.2 from the 5.1.1 (by command line) with the usual script, I got a black screen, and the Jetson loops (try to load the OS, bios, OS, Bios, OS) … The bios parameters seem ok. If someone has a workaround ? :-)
So, due to the issue (maybe linked to the Seedstudio board), I’ made a rollback to the 5.1.1 → OK
Remarks , no issue are raised in the log → When I flashed the jetson to the 5.1.2