Available GPU frequencies changed after OS re-install

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

I have re-installed OS via JetPack on my Jetson TX2.
The available GPU frequencies were changed after reinstallation.
For example, previous minimum GPU frequency was 140MHz, now it is 114MHz.

I am guessing the change was made by OS reinstallation.
However, I know that frequencies depend on circuit.
Is it possible to change list of available frequencies?

2

Hi jongho.kim,

What’s the BSP version you tested? We need to know if can help to find the cause if that’s a regression.

Thanks

3

Hi kayccc,

I don’t know what is BSP.
How can I check BSP version?

If I type

$ uname -a

on my shell on TX2, it shows:

Linux jongho-tx2 4.9.140-tegra #1 SMP PREEMPT Wed Mar 13 00:30:11 PDT 2019 aarch64 aarch64 aarch64 GNU/Linux

Thanks

4

Hi jongho.kim,

Not sure what the previsions OS is on you device, you may refer to L4T document to get more understanding of the power and clock management:
[url]https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fpower_management_tx2_32.html%23[/url]

Thanks