We have used TX2 and customize carry board for our production. How we have one problem: When the temperature rise more than a threshold, the CPU and GPU frequency will drop off even if we set the ./jetson_clock.sh or nvpmodel -m 0 .How we keep the frequency when the temperature rise ?
The whole point of dropping the frequency is to protect the ICs from overheating which will damage them.
The way to keep the speed up is to make sure your cooling solution is adequate (including ambient/cabinet temperature.)