Tegra Graphics Debugger on Nexus 9

Hi

I am trying to analyze some standard workloads like 3dmark on Nexus 9 device using tegra graphics debugger. I have rooted my device and verified that using rootchecker. However, I am getting this log and failing to attach to the 3dmark thread.

adbd cannot run as root in production builds
Failed to retrieve current device information.

Is that related to permission issues? My ‘Install Debugger’ sign is also showing as a cross mark. What should I do to resolve this issue?

It seems adbd cannot run as root with your root method